Crescent  Hill  Filters. 


/ 


The  Bradley  &  Gilbert  Company,  Louisville,  Ky. 


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WORKS 


FOR 


Subsiding,  Coagulating,  Filtering 


AND 


PURIFYING  WATER 


FOR  THE 


LOUISVILLE  WATER  COMPANY 


CRESCENT  HILL. 


LOUISVILLE  : 

THE  BRADLEY  &  GILBERT  COMPANY,  PRINTERS. 


Entered  according  to  Act  of  Congress,  in  the  Year  1900, 

By  CHARLES  HERMANY, 

In  the  Office  of  the  Librarian  of  Congress,  Washington,  D.  C. 


N.  B. — A  caveat  has  been  filed  in  the  U.  S.  Patent  Office  upon  all  designs, 
members,  devices,  combinations,  arrangements,  and  mechanism,  with  their 
functions  pertaining  to  the  art  of  water  filtration  and  purification,  as  herein¬ 
after  described. 


\<o 

L3~S  vV 

Louisville,  Ky.,  December  13,  1900. 

ADVERTISEMENT. 

FOR  LOUISVILLE  FILTERS. 


SEALED  PROPOSALS,  addressed  to  the  Louis¬ 
ville  Water  Company,  for  the  construction  of 
a  system  of  American  (mechanical)  filters,  will  be 
received  at  said  company’s  office  until  12  o’clock 
noon,  January  26,  1901,  upon  plans  and  specifica¬ 
tions  submitted  by  this  company. 

The  work  is  subdivided  into  twenty-four  differ¬ 
ent  parts,  any  one  or  all  of  which  may  be  bid  for 
by  the  same  party  or  firm  of  contractors,  as  follows: 
Proposal  I — For  pipes,  specials,  and  gate-valves,  out¬ 
side  of  and  under  the  filter-house. 


II—  “ 

ways  in  filter-house  to  support  an 

electric  crane. 

III—  “ 

three  filter-tanks. 

IV—  “ 

20-inch,  30-inch,  and  36-inch  pipes 

and  specials  connected  with  three 

filter  tanks. 

—  4  — 


Proposal  V- 
a  VI- 
a  VII- 
“  VIII- 


a  IX- 
“  X 
a  XI- 
a  XII- 
“  XIII- 
“  XIV- 

“  XV- 
“  XVI- 


u 


XVII- 


u  XVIII 
u  XIX- 


“  XX- 

a  XXI— 
a  XXII— 


For  gate-valves. 

a  six  balanced  20-inch  piston  valves. 
a  six  floating  weirs. 
a  sand  layer  support  and  strainer 
system  for  three  filter-tanks. 
a  electric  traveling-crane. 
a  agitator. 
a  electric;  motors. 
u  gauges  and  tablets. 
a  filter  sand. 

a  one  stand-pipe  and  four  sulphate 
of  alumina  solution-tanks. 
a  meter  motor. 

a  pumps  and  slotted  disc-crank. 
a  floating  discharge-tube  in  stand- 
pipe. 

a  sulphate  of  alumina  feed-tank. 
a  pipes,  specials,  and  fittings  in  co¬ 
agulant-house. 

a  galleries,  platforms,  floors,  and 
stairs. 

a  elevator  in  coagulant-house. 
a  two  chronometers. 


—  5  — 


Proposal  XXIII — For  lighting  coagulant  and  filter- 

houses. 

“  XXIV —  “  heating  systems  in  coagulant 

and  filter-houses. 

Plans  and  specifications  for  the  above  can  be  ob¬ 
tained  on  and  after  December  13th,  1900,  at  the 
office  of  the  Louisville  Water  Company. 

Plans,  specifications,  and  proposals,  for  filters  of 
the  same  maximum  capacity  and  requirements  for 
water  purification  as  above  set  forth,  made  and  sub¬ 
mitted  from  designs  for  American  (mechanical)  fil¬ 
ters,  other  than  those  referred  to  by  this  advertise¬ 
ment,  will  also  be  received.  Such  plans,  specifica¬ 
tions,  and  proposals,  in  order  to  be  considered,  must 
state  the  terms  of  payment  by  the  Water  Company, 
and  be  accompanied  by  such  guarantees  to  said  com¬ 
pany  as  to  capacity,  efficiency,  and  cost  of  operation 
as  may  be  satsfactory. 

If  contracts  are  made  based  upon  the  Water 
Company’s  plans  and  specifications,  partial  payments 
will  be  made  in  cash  at  the  Water  Company’s  office, 
from  month  to  month,  as  the  work  progresses,  as 
follows:  Upon  acceptable  material  delivered  at  the 


water  purification  site,  fifty  (50)  per  cent,  upon  their 
estimated  contract  value;  when  erected  and  ready  for 
trial,  thirty  (30)  per  cent,  more;  and  when  com¬ 
pleted,  tried,  and  accepted,  the  remaining  twenty 
(20)  per  cent. 

A  cash  certificate,  or  certified  check,  equal  to  ten 
(10)  per  cent,  of  the  amount  bid,  must  accompany 
each  proposal,  as  a  guarantee  that,  if  the  contract  is 
awarded  under  such  proposal,  the  maker  thereof  will 
enter  into  a  contract  therefor  within  ten  days  of  the 
making  of  the  award. 

Bond,  with  approved  security  and  acceptable  to 
the  Louisville  Water  Company,  to  the  amount  of 
fifty  (50)  per  cent,  of  the  money  value  of  the  con¬ 
tract,  will  be  required  of  each  contractor. 

The  Louisville  Water  Company  reserves  the  right 
to  reject  any  or  all  proposals  submitted. 

LOUISVILLE  WATER  COMPANY, 

By  Chas.  R.  Long, 

President. 


WATER  PURIFICATION  WORKS 


Louisville  Water  Company. 


DIVISION  A. 


INTRODUCTION. 

1.  Subdivisions  or  Principal  Sections  of  the 

Purification  Works. — The  principal  sections 
of  the  contemplated  water  purification  works 
will  be  four  in  number,  which  are  below  de¬ 
scribed  in  the  physical  order  of  their  construc¬ 
tion. 

2.  (A)  Plain  subsidence  in  Crescent  Hill  Reservoir, 

of  two  basins  each  of  50,000,000  gallons  capac¬ 
ity,  which  reservoir  was  constructed  in  1877, 
1878,  and  1879,  which  has  hitherto  been  used 
as  a  subsiding,  storage,  and  distributing  reser¬ 
voir,  in  which  capacity  it  will  continue,  but 
will  hereafter  deliver  the  settled  water  to  the 


—  8  — 


coagulating  chambers  and  devices,  and  thence 
to  the  filters,  instead  of  the  city,  as  it  has 
hitherto  served. 

3.  (B)  The  clear  water  reservoir,  of  25,000,000  gal¬ 

lons  capacity,  for  storing  filtered  water,  and 
the  filter-house,  both  of  which  are  now  under 
contract  and  in  process  of  construction. 

4.  (C)  Purification  (through  the  processes  of  subsi¬ 

dence,  coagulation,  and  filtration)  will  consist 
of  removing  from  the  water: 

1  st,  Turbidity; 

2d,  Color; 

3d,  Organic  matter; 

4th,  Bacteria; 

and  is  to  be  accomplished  by  the  structures, 
vessels,  devices,  machines,  and  appliances  de¬ 
scribed  in  the  following  ninety-six  paragraphs 
of  these  specifications. 

5.  A  connection  outside  of  the  filter-house,  between 

the  36-inch  and  48-inch  lines  of  supply  pipes 
from  Crescent  Hill  Reservoir  to  the  city,  re¬ 
quiring  one  36-inch  by  36-inch  by  36-inch  Y 
pipe,  one  48-inch  by  48-inch  by  36-inch  Y  pipe, 


—  9  — 


one  36-inch  curve,  two  36-inch  gate-valves,  one 
36-inch  sleeve,  and  one  48-inch  sleeve. 

6.  One  48-inch  gate-valve,  located  opposite  the 
southwestwardly  corner  of  the  filter-house  in 
the  line  of  48-inch  main  supply  pipe  from 
Crescent  Hill  Reservoir  to  the  city,  which  48- 
inch  gate-valve,  with  the  two  36-inch  gate- 
valves  above  named,  will  enable  the  two  lines 
of  36-inch  and  48-inch  city  supply  mains  to 
be  used  jointly  or  severally  and  thereb}^  made 
to  supply  raw  or  unfiltered  water  eastwardly  of 
said  36-inch  and  48-inch  gate-valves,  and  fil¬ 
tered  or  clear  water  westwardly  therefrom, 
when  filter  works  shall  have  been  completed. 
By  this  arrangement,  should  an  accident  hap¬ 
pen  to  the  filter  works  or  pumping  machinery, 
threatening  the  filtered  water  supply  to  the 
city  with  interruption,  the  whole  purification 
plant  can  be  cut  out  and  the  city  of  Louisville 
supplied  with  water  directly  from  Crescent  Hill 
Reservoir,  the  same  as  is  done  at  the  present 
day. 


—  10  — 


7-  One  plate-steel  stand-pipe  or  coagulating  tank, 
erected  near  the  northeastwardly  corner  of  the 
filter-house,  50  feet  in  diameter  and  75  feet 
high  above  its  foundation,  the  supply  of  water 
to  which  is  to  be  from  the  line  of  48-inch  pipe 
from  Crescent  Hill  Reservoir  to  the  city  (after 
its  connection  with  the  line  of  36-inch  pipe) 
as  a  raw  water  supply  main  to  said  stand-pipe 
through  one  or  more  meters,  in  which  stand¬ 
pipe  or  tank  the  water  is  to  be  coagulated, 
and  from  which  it  is  to  be  drawn  by  the  con¬ 
tinuation  of  the  same  line  of  48-inch  coagu¬ 
lated  raw  water  supply  main  and  through  four 
36-inch  branches  therefrom  into  the  filter- 
house. 

8.  At  the  northeastwardly  corner  of  the  clear  water 
reservoir,  opposite  the  entrance  to  Crescent 
Hill  Reservoir,  is  to  be  erected  a  brick  or  con¬ 
crete  building,  fronting  60  feet  on  the  Shelby- 
ville  Turnpike  and  extending  back  southwardly 
parallel  with  and  contiguous  to  the  filter-house 
120  feet  or  less,  which  house  is  to  be  used  for 
storing  the  chemicals,  is  to  contain  the  stand- 


-11- 


pipe  or  tank,  the  coagulating  preparation  sup¬ 
ply  and  regulation  devices,  as  also  the  labora¬ 
tory  connected  with  the  works. 

9.  Four  lines  of  36-inch  coagulated  raw  water  sup¬ 
ply-pipes,  leading  from  the  before  mentioned 
line  of  48-inch  coagulated  raw  water  supply- 
pipe  to  the  filter-house,  through  the  walls 
thereof,  and  terminating  at  36-inch  gate-valves 
above  the  floor  at  the  ends  of  the  two  groups  of 
filters  hereafter  to  be  described.  These  pipes, 
between  the  line  of  48-inch  pipe  and  the  36- 
inch  gate-valves  at  their  ends  in  the  filter- 
house,  shall  consist  of  the  following  parts,  re¬ 


spectively  : 

10.  No.  1.  Lbs. 

1  48-inch  x  48-inch  x  36-inch  tee,  .  .  9,000 

2  48  “  sleeves, . 3 >000 

1  36  “  pipe,  8  feet  long,  .  .  .  3,200 

1  36  “  “  12  “  ....  4,700 

1  36  “  curve,  4  “  ....  1,700 

3  36  “  pipes,  12  “  each,  .  .  14,100 


1  36  “  90  deg.  curve,  2.33  ft.  long,  2,700 

1  36  “  pipe,  9.9  feet  long,  .  .  .  4,100 
1  36  “  gate,  1.92  “  ...  11,000 


53,50° 


—  12  — 


II. 


12. 


J3' 


No.  2. 

Lbs. 

1 

CO 

^t" 

inch 

x  48-inch  X 

36-inch  tee,  . 

9,000 

48 

u 

sleeves,  . 

.  3,000 

36 

u 

pipe,  17.42 

feet  long,  . 

.  7,000 

36 

u 

90  deg.  curve,  4.96  ft.  long,  3,480 

36 

a 

pipe,  9.90 

feet  long, 

.  4,100 

36 

a 

gate,  1.92 

u 

.  10,000 

36,580 

No.  3. 

Lbs. 

48- 

inch 

x  48-inch  X 

36-inch  tee,  . 

.  9,000 

48 

u 

sleeves,  . 

•  3, 000 

36 

< ( 

pipe,  17.42  feet  long,  . 

.  7,000 

36 

u 

90  deg.  curve,  4.96  ft.  long,  3,480 

36 

u 

pipe,  9.90 

feet  long, 

.  4,100 

36 

u 

gate,  1.92 

u 

.  10,000 

36,580 

No.  4. 

Lbs. 

48- 

inch 

x  48-inch  X 

36-inch  tee,  . 

.  9,000 

48 

u 

sleeves,  . 

.  3,000 

36 

u 

pipe,  16  feet  6  inches  long,  6,600 

36 

u 

90  deg.  curve,  13.17  ft.  long,  5,500 

36 

u 

pipe,  io.k 

feet  long,  . 

.  4,200 

36 

a 

gate,  1.92 

u 

.  10,000 

38,300 


—  13  — 


14-  No.  5.  Lbs. 

i  20-incli  pipe,  9  feet  6  inches  long,  1,663 

3  20  “  pipes,  12  feet  long,  .  .  .  6,300 

4  20  “  curved  pipes,  4  ft.  6  inches 


long, . 3,150 

4  20-inch  Y  pipes,  3  ft.  6  inches  long,  3,500 

t4>6i3 

15-  No.  6.  Lbs. 


1  48-iuch  x  48-inch  x  30-inch  special 

tee,  8  feet  8  inches  long,  .  .  9,000 

1  36-inch  x  36-inch  x  30-iuch  special 


tee,  8  feet  long, . 5  400 

2  48-inch  sleeves, . 3, 000 

2  36  “  “  1,200 


1  30  “  pipe,  9  feet  8  inches  long,  3,300 

1  30  vertical  curve,  4  feet  long,  2,000 

1  30  “  pipe,  5  feet  long,  .  .  .  1,700 

4  30  u  x  30-inch  x  20-inch  tees,  2  ft. 

9  inches  long, . 2,100 

1  30-inch  pipe,  7  feet  7^2  inches  long,  2,400 
1  30  “  “  7  “  9  “  “  2,400 

1  30  “  “  5  “  7  “  “  1,100 

2  30  u  quarter  bends,  ....  2,000 

33  30  “  pipe,  12  feet  long,  .  .  132,000 

2  30  “  gates, . 13,000 

180,600 


14  — 


1 6.  Two  groups  of  filter-tanks  as  hereinbefore  de¬ 

scribed. 

17.  A  system  of  raw  water  supply-pipes,  clear  water 

efHuent-pipes,  clear  wash  water  supply-pipes, 
and  wash  water  waste-pipes,  with  their  branches, 
valves,  regulating  and  controlling  devices  for 
the  two  groups  of  filter-tanks. 

18.  One  sand-agitator,  to  be  used  for  agitating  the 

sand  layers  successively  in  any  of  the  six  filter- 
tanks  comprised  in  the  two  groups. 

19.  A  compound  traveler  or  traveling  crane  for 

transferring  the  agitator  transversely  across 
the  filter-house  from  tank  to  tank,  and  longi¬ 
tudinally  thereof  from  group  to  group. 

20  A  system  of  electric  motors  for  operating  valves, 
agitators,  travelers,  etc. 

21.  (D)  A  new  power  station  with  pumping  machin¬ 
ery  for  re-elevating  the  filtered  water  and  dis¬ 
tributing  it  throughout  the  system  of  water 
pipes  in  the  city  upon  the  direct  pressure  plan 
and  for  generating  all  other  power  needed, 
which  power  station  is  to  be  located  west- 
wardly  of  and  adjacent  to  the  clear  water 


—  15  — 


reservoir  named  in  paragraph  B  of  this  sub¬ 
division. 

22.  It  is  for  constructing  the  third  division  (C), 
paragraphs  23  to  120,  inclusive,  that  the  fol¬ 
lowing  specifications  are  provided. 


DIVISION  C. 


SPECIFICATIONS. 

23.  System. — Specifications  for  a  system  of  Amer¬ 
ican  (Mechanical)  Filters  to  be  constructed  and 
erected  for  the  Louisville  Water  Company,  in  houses 
to  be  built  for  the  purpose  by  said  company  at 
Crescent  Hill,  Jefferson  County,  Kentucky. 

24.  Location. — The  filters  are  to  be  delivered  and 
erected  at  the  Louisville  Water  Company’s  Water 
Purification  Station,  situated  at  Crescent  Hill,  on 
the  L.  C.  &  L.  branch  of  the  L.  &  N.  System  of 
Railroads;  also  on  the  Shelbyville  and  Louisville 
Turnpike,  adjacent  and  contiguous  to  Crescent  Hill 


—  16 


Reservoir,  and  four  and  one-half  miles  distant  from 
the  court-house  in  Louisville*  There  is  a  standard 
track  railroad  switch  running  into  the  station  from 
the  main  line  of  the  railroad. 

25.  Definition. — By  the  American  (Mechanical) 
System  of  Filters,  is  meant  filters  composed  of  lay¬ 
ers  of  sand,  placed  in  metal  tanks,  through  which 
sand  and  tanks  the  turbid  and  unfiltered  water  will 
be  passed,  having  first  been  settled  in  Crescent  Hill 
Reservoir  and  then  coagulated  by  the  application  of 
chemicals  (presumably  the  sulphate  of  alumina),  and 
by  such  coagulation  and  passage  through  sand  layers, 
become  clarified  and  purified ;  the  system  also  in¬ 
cludes  the  cleaning  of  the  sand  layers  (in  place, 
without  removing  them  from  the  filter-tanks)  by  the 
use  of  currents  of  water,  air,  or  the  two  combined, 
passed  through  the  sand  layers  in  a  direction  the 
reverse  of  that  of  filtration  and  purification.  I11  its 
application  at  the  Louisville  Purification  Works  it 
combines  therewith  subsidence,  which  latter  is  not 
exclusively  an  American  process.  Thus  amplified, 
it  will  comprise  processes  in  the  following  physical 
order : 


—  17  — 


First — Plain  subsidence  in  Crescent 
Hill  Reservoir. 

Second — The  application  of  coagulants 
(chemicals)  at  some  point  between  the  res¬ 
ervoir  and  the  filters. 

Third — Rapid  sand  filtration  by  the 
force  of  gravity. 

Fourth — Cleansing  the  sand  by  reverse 
currents  of  water,  air,  or  the  two  combined, 
under  necessary  pressure,  accompanied  by 
mechanical  agitation  (if  deemed  necessary), 
and  a  restoration  of  the  sand  by  each  such 
cleansing  to  its  normal  condition  of  effi¬ 
ciency. 

26.  Number  of  Units. — The  filter-house  will  contain 
six  units,  two  groups,  three  in  a  group,  one  group 
at  the  southerly  end  of  the  house  and  the  other  at 
the  northerly  end.  One  group  of  three  tanks  only 
is  now  to  be  built. 

27.  Size  of  Each  Unit. —  Each  filter  or  unit  will 
consist  of  a  rectangular  tank,  146  feet  11%  inches 
long,  30  feet  3  inches  wide,  and  8  feet  deep,  in  the 
clear. 


2 


—  18  — 


28.  Capacity  of  Each  Unit. — Each  filter  or  unit  will 
have  a  sand  surface  area  of  one-tenth  of  an  acre,  so 
that,  when  filtering  at  the  rate  of  125,000,000  gallons 
in  twenty-four  hours  per  acre,  each  unit  will  give 
an  output  of  12,500,000  gallons  per  twenty-four 
hours;  or  75,000,000  gallons  per  twenty-four  hours 
for  the  six  tanks,  as  the  maximum  volume  filtered 
under  the  most  favorable  conditions.  The  floor  area 
of  the  filter-house  will  be  one  acre;  the  area  of  the 
sand  layers  in  the  six  filter-tanks  will  be  six-tenths 
of  an  acre,  leaving  four-tenths  of  an  acre  of  the 
floor  space  to  be  occupied  by  a  system  of  pipes  and 
other  needful  details. 


FILTER  TANKS. 

29.  The  individual  tanks  for  each  group  of  fil¬ 
ters  are  to  be  constructed  of  plate-steel,  riveted,  and 
built  to  the  forms  and  dimensions  given  upon  the 
drawings.  Each  tank  is  to  be  divided  into  a  lower 
and  upper  compartment  by  means  of  a  horizontal 
diaphragm,  such  diaphragm  being  constructed  of 
transverse  I-beams  and  brass  wire-cloth  laid  there- 


—  19  — 


upon  of  such  number  of  folds,  gauge  of  wire,  size 
of  mesh,  manner  of  piling  and  connecting,  and 
strength  of  webs,  as  will  safely  support  the  sand 
layer,  permit  the  filtered  water  to  pass  through  the 
cloth,  retain  the  sand  and  permit  the  reverse  current 
for  washing  the  sand  layer  to  pass  through  it  in  the 
sand  cleansing  process,  all  under  pressure  and  at 
rates  of  flow  involved  by  the  requirement  stated  in 
the  preceding  paragraph.  In  brief,  the  office  of  the 
diaphragm  is  to  support  the  sand  layer,  and  consti¬ 
tute,  what  is  ordinarily  termed  in  mechanical  filters, 
the  strainer  system.  The  lower  and  upper  compart¬ 
ments  of  each  tank  are  to  be,  respectively,  36  and 
60  inches  in  height. 

30.  In  the  lower  compartment  of  each  filter-tank 
are  to  be  two  lines  of  20-inch  pipe,  each  of  which 
is  to  alternately  withdraw  the  filtered  water  there¬ 
from,  or  supply  the  wash  water  thereto,  by  the 
proper  location  and  operation  of  the  necessary  gate- 
valves,  all  as  illustrated  upon  the  drawings  and  here¬ 
inafter  described ;  they  constitute,  by  reason  of  these 
functions,  the  effluent  pipes  for  the  filtered  water, 
and  influent  pipes  for  the  wash  water. 


—  20  — 


31.  Along  the  upper  longitudinal  margin  of  the 
tanks  in  each  group  are  to  be  twelve  (two  double 
and  two  quadruple)  plate-steel  ducts  for  the  inflow 
of  the  subsided  and  coagulated  water  to  be  filtered, 
and  also  for  the  outflow  of  the  wash  water  used  for 
cleansing  the  sand  layer,  all  as  illustrated  upon  the 
drawings. 

32.  The  system  of  pipes  for  supplying  the  un¬ 
filtered  water  to  the  sand  layer,  the  withdrawing 
from  the  lower  compartments  of  the  tanks  of  the 
filtered  water,  and  the  supplying  to  said  lower  com¬ 
partments  of  the  tanks  the  clear  water  for  washing 
purposes,  for  each  group  of  tanks,  are  to  be  as  fol¬ 
lows  : 

33.  Of  the  four  lines  of  36-inch  unfiltered  water 
supply-pipes  named  in  paragraphs  10,  11,  12,  and  13 
of  the  introduction  of  these  specifications,  No.  1  is 
to  enter  the  filter-house  from  the  easterly  side  12.42 
feet  south  from  the  north  end;  No.  2,  on  the  same 
side,  186.71  feet  south  from  the  north  end;  No.  3, 
on  the  same  side,  205.55  feet  south  from  the  north 
end;  and  No.  4,  from  the  southerly  end  37.39  feet 
westwardly  from  the  easterly  side  thereof.  Inside 


—  21  — 


of  and  transversely  across  the  filter-house,  6  feet  ^ 
inch  above  the  floor  thereof,  these  four  lines  of  in¬ 
flow-pipes  are  to  be  of  three  sizes — 36  inches  in 
diameter  opposite  the  end  of  the  first  tank,  30 
inches  opposite  the  end  of  the  second  tank,  and  20 
inches  opposite  the  end  of  the  third  tank,  counting 
from  the  easterly  wall  of  the  house. 

34.  To  each  one  of  the  four  36-inch  unfiltered 
water  supply-pipes  inside  of  the  walls  of  the  house, 
1  foot  9%  inches  above  the  floor,  is  to  be  attached 
a  36-inch  gate-valve. 

35.  From  the  three  named  (36-inch,  30-inch,  and 
20-inch)  sections  of  the  four  lines  of  unfiltered  water 
supply-pipes  (see  paragraphs  10,  11,  12,  and  13) 
there  are  to  be  twelve  20-inch  branches,  with  gate- 
valves  attached,  leading  from  these  pipes  into  oppo¬ 
site  ends  of  the  ducts  along  the  upper  margins  of 
the  filter-tanks,  for  the  purpose  of  introducing  the 
unfiltered  water  to  the  tanks  for  passage  through 
the  sand  layers ;  that  is,  each  tank  is  to  have  two 
20-inch  supply-pipes,  one  from  each  end.  Just  be¬ 
fore  connecting  with  the  ducts  there  shall  be  placed 
in  each  of  these  unfiltered  water  supply-pipes  a  20- 


-22- 


inch  balanced  piston  regulating  valve,  as  shown  up¬ 
on  the  drawings,  for  the  purpose  of  maintaining  a 
uniform  depth  of  water  on  the  sand  layer  in  each 
filter-tank. 

36.  To  the  twelve  20-inch  unfiltered  water  sup¬ 
ply-pipes  to  the  two  groups  of  three  filter-tanks  are 
to  be  connected,  between  the  tanks  and  the  36-inch, 
30-inch,  and  20-inch  supply-pipes,  twelve  20-inch 
T  branch-pipes,  leading  down  from  between  the  said 
ducts  at  the  upper  margins  of  the  filter-tanks  and 
the  unfiltered  water  supply-pipes,  to  the  20-inch 
branch  drain-pipes  extending  through  the  walls  of 
the  filter-house,  below  the  level  of  the  main  floor, 
to  and  connecting  with  the  20-inch  stoneware  drain¬ 
pipe,  leading  from  Crescent  Hill  Reservoir  to  Bear- 
grass  Creek,  for  the  purpose  of  wasting  the  wash 
water  through  said  pipe  into  said  Beargrass  Creek, 
each  of  which  drain  connecting  pipes  is  to  be  pro¬ 
vided  with  a  20-inch  gate- valve.  The  unfiltered  water 
supply  pipes,  clear  water  effluent-pipes,  wash  water 
supply-pipes,  wash  water  waste-pipes,  with  their  sev¬ 
eral  branches  and  gate-valves,  are  illustrated  in  their 
proper  positions  in  the  various  plans,  elevations, 


and  sections  given  on  sheets  i,  iA,  9,  and  10  of 
the  drawings. 

37.  The  filtered  water  effluent-pipes  from  the  fil¬ 
ter-tanks  into  the  reservoir  below  the  floor  of  the 
house,  and  the  wash  water  supply-pipes  for  washing 
the  filters,  are  to  be  arranged  as  follows : 

38.  The  lines  of  36-inch  and  48-inch  filtered 
water  supply-pipes  to  the  city  are  to  be  connected 
by  a  line  of  30-inch  pipe  passing  through  the  filter- 
house,  underneath  the  floor  thereof,  three  feet  east- 
wardly  from  the  westerly  wall  of  said  filter-house, 
which  line  of  30-inch  pipe  is  to  have  a  gate-valve 
at  each  end  connected  to  branches  in  the  said  36- 
inch  and  48-inch  pipes  respectively.  To  this  line  of 
30-inch  pipe  underneath  the  floor  of  said  house,  and 
by  means  of  30-inch  x  30-inch  x  20-inch  T-branches 
therefrom  extending  upward  through  the  floor  and 
along  the  surface  thereof,  there  shall  be  one  line  of 
20-inch  pipe  extended  to  each  end  of  the  two  groups 
of  filters,  and  there  connect  with  the  lower  compart¬ 
ments  of  the  said  two  groups  of  tanks,  as  hereinbe¬ 
fore  described. 


—  24 

39-  From  the  foregoing  four  lines  of  20-inch 
wash  water  supply-pipes  leading  from  the  line  of 
30-inch  pipe  described  in  the  last  paragraph,  there 
are  to  be  twelve  20-inch  branches,  with  gate-valves 
outside  of  the  tanks,  passed  into  and  out  of  the  ends 
of  the  lower  compartments  of  the  filter-tanks  and 
extending  through  the  entire  length  of  said  compart¬ 
ments.  The  two  pipes  to  each  compartment  are  to 
enter  from  opposite  ends  thereof,  for  the  purpose  of 
conducting  therefrom  the  filtered  water,  and  supply¬ 
ing  thereto  the  wash  water,  all  as  illustrated  upon 
the  drawings.  The  20-inch  gate-valves  in  these  sev¬ 
eral  lines  of  20-inch  pipe  are  for  use  to  at  pleasure 
conduct  the  filtered  water  from  the  lower  compart¬ 
ments  of  the  tanks  into  the  clear  water  reservoir,  or 
the  wash  water  to  said  compartments  from  the  line 
of  30-inch  clear  water  supply-pipe. 

40.  Inside  of  the  lower  compartments  of  the  fil¬ 
ter-tanks  the  20-inch  pipe  shall  be,  on  their  lower 
quarter-circumferences,  perforated  with  three-inch 
openings,  by  means  of  which  the  filtered  water,  after 
passing  the  sand  layer,  can  be  withdrawn  from  said 
compartment  and  conducted  to  the  clear  water  reser- 


—  25  — 


voir,  or  the  wash  water  Conducted  thereto,  for  the 
purpose  of  washing  the  sand  layer.  The  number  of 
these  openings  shall  be  such  as  to  be  the  equivalent 
to  the  delivering  capacity  of  the  20-inch  pipes,  and  so 
spaced  as  to  withdraw  from  the  lower  chamber  of 
the  filter-tank  the  filtered  water  equally  from  all 
parts  thereof,  and  also  to  supply  thereto  the  wash 
water  equally  to  all  parts  thereof. 

41.  I11  each  of  these  20-inch  pipes  connected  with 
the  lower  compartment  of  the  filter-tank  and  the 
clear  warter  reservoir,  is  to  be  placed  a  vertical 
tank,  48  inches  in  diameter  by  15  feet  6  inches 
long,  containing  an  automatic  floating  weir  as  a 
filter-head  compensator  or  regulator,  with  a  20-inch 
discharge-pipe  extending  downward  into  the  clear 
water  reservoir,  which  discharge-pipe  is  to  be  lowered 
and  raised  in  the  vertical  tank  by  a  float  with  weir 
in  it,  and  is  to  conduct  the  water  from  the  tank 
level  over  the  sand  layer  to  that  in  the  reservoir 
under  the  floor,  on  the  same  hydraulic  principle  or 
gravity  force  as  does  a  turbine  and  its  draught-tube 
conduct  the  water  from  the  level  of  the  head-race  to 
that  of  the  tail-race.  In  the  case  of  the  turbine,  the 


purpose  is  to  develop  a  desired  amount  of  mechan¬ 
ical  energy;  in  the  case  of  the  filter,  to  pass  a  de¬ 
sired  volume  of  water — corollary;  in  each  there  is 
obtained  an  approximately  uniform  rate  of  flow. 

42.  These  regulators  shall  be  fitted  to  the  efflu¬ 
ent-pipes  of  the  filters  as  inverted  siphons  with  a 
floating  delivery  weir  for  regulating  the  rate  of 
effluent  from  the  filters,  which  shall  consist  of  the 
following  parts : 

43.  One  48-inch  x  48-inch  x  20-inch  flanged  tee,  3 
feet  5  inches  high. 

44.  One  bottom  cover  to  flanged  tee,  with  one 
20  inch  brass-bushed  water-packed  nozzle  for  the  pass¬ 
age  of  the  floating-weir  tube. 

45.  One  48-inch  flanged  cylinder,  12  feet  high. 

46.  One  20  inch  internal  diameter  aluminum 
floating  weir  tube,  15  feet  long. 

47.  One  annular,  U  shaped  in  section,  sheet-brass 
buoy,  attached  to  the  upper  end  of  the  weir  tube 
named  in  last  paragraph. 

48.  The  20-inch  aluminum  weir  tube  shall  be 
externally  turned  and  smoothly  finished,  so  it  may 
pass  freely  through  the  bottom  to  the  flanged  tee 


—  27- 


named  in  paragraph  44,  approximately  water  tight. 
The  interior  of  the  weir  tube  need  not  be  finished. 
The  metal  of  the  weir  tube  shall  be  one-quarter  of 
an  inch  thick,  finished  dimensions. 

49.  The  interior  of  the  48-inch  cylinder  and  tee 
named  in  paragraphs  45  and  43,  shall  be  lined  with 
Portland  cement  mortar  one  inch  all  around,  which 
lining  shall  afford  a  non-corrosive  coating  to  the 
cast-iron,  shall  be  smoothly  finished,  concentric  with 
the  axis  of  the  cylinder,  and  provide  the  upper 
guide  for  the  buoy  of  the  floating  weir  tube. 

50.  Near  the  upper  and  lower  ends  of  the  U- 
shaped  in  section  sheet-brass  floating  weir  buoy  there 
shall  be  6-inch  x  %-inch  reinforcing  rings,  securely 
brazed  to  the  sheet-brass  buoy,  turned  on  the  out¬ 
side,  smoothly  finished,  and  be  concentric  with  the 
axis  of  the  weir  tube  and  the  48-inch  cylinder  as 
guides  for  preserving  the  alignment  of  the  floating 
weir  tube  during  its  rise  and  fall  in  the  48-inch 
cylinder.  The  buoy  at  the  upper  end  of  the  float¬ 
ing  weir  tube  is  to  be  adjusted  by  weights  so  that 
the  crest  of  its  weir  tube  will  be  submerged  suffi¬ 
ciently  deep  below  the  water  surface  to  permit  the 


—  28  — 


rate  of  filtration  per  acre  per  twenty-four  hours  de¬ 
termined  upon  to  flow  into  the  weir  tube,  and 
thence  fall  by  gravity  through  said  tube  into  the 
clear  water  reservoir  below  the  filter-house  floor. 
The  degree  of  submergence  of  the  weir  crest  can  be 
increased  or  decreased  by  weighting  the  buoy  to  a 
greater  or  less  extent,  and  thereby  determine  the 
rate  of  filtration.  The  action  of  the  floating-weir  is 
as  follows :  When  a  filter-tank  is  filled  with  water 
and  the  connection  between  it  and  its  weir  tank 
opened,  the  water  in  its  48-inch  cylinder  surround¬ 
ing  the  floating  weir  will  rise  therein  to  the  eleva¬ 
tion  of  the  water  in  the  filter-tank  less  the  friction 
head  due  to  the  passage  of  the  water  through  the 
sand  layer,  strainers,  and  pipes,  with  the  weir  sub¬ 
merged  as  determined  by  the  construction  and 
weighting  of  the  buoy ;  so  that,  when  the  pipe  con¬ 
nections  between  the  lower  compartment  of  the  filter- 
tank  and  filter-head  regulator  are  opened,  passage  of 
water  through  the  sand  layer  (filtration)  and  dis¬ 
charge  over  the  weir  tube  into  the  clear  water  reser¬ 
voir  under  the  filter-house  floor  will  commence.  As 
the  sand  layer  clogs,  the  friction  head  increases,  the 


—  29  — 


level  of  the  water  in  the  48-inch  cylinder  falls,  the 
buoy  follows  and  maintains  the  depth  of  the  weir 
submergence  constant  at  all  times.  As  the  clogging 
of  the  sand  layer  and  the  friction  head  increase,  the 
buoy  will  sink  farther  and  farther  in  the  cylinder 
until  it  arrives  at  the  bottom,  when  the  filter  will 
be  operated  under  a  head  of  12.5  feet,  at  which 
point  it  is  time  to  stop  filtering  and  cleanse  the 
sand  layer. 

51.  There  shall  be  attached  to  the  bottom  of 
each  48-inch  cylinder,  a  vacuum  pipe,  leading  to  a 
vacuum  gauge  located  in  the  operator’s  cabinet, 
where  he  can  observe  continuously  the  head  to 
which  the  sand  layer  in  any  filter  may  be  subjected. 

52.  At  the  sides  of  the  ducts  along  the  upper 
margins  of  the  filter-tanks,  as  hereinbefore  described, 
are  to  be  weirs,  over  which  to  discharge  the  un¬ 
filtered  water  from  the  ducts  into  the  tanks  when 
filtering,  and,  when  washing,  the  waste  water  over 
same  from  the  tanks  back  into  the  ducts  and  there¬ 
from  into  the  20-inch  drain -pipe,  all  as  illustrated 
upon  the  drawings. 

53.  At  the  northerly  and  southerly  ends  of  the 


-30- 


group  of  three  filter-tanks,  there  are  to  be  erected 
operating  platforms,  constructed  of  plate  and  other 
forms  of  steel,  with  stairs  and  railings  as  illustrated 
upon  the  drawings,  which,  with  the  covered  ducts 
between  and  alongside  of  the  filter-tanks,  will  afford 
ready  access  to  all  parts  for  operating  purposes. 
The  tops  of  the  plates  covering  the  ducts  shall  be 
ragged  like  a  carriage-step,  by  the  use  of  a  diamond 
point  and  hammer  or  its  equivalent,  so  as  to  provide 
a  secure  footing  for  the  men  in  passing  to  and  fro 
while  operating  the  filters. 


SAND  LAYER  SUPPORT  AND  STRAINER  SYSTEM. 

54.  I11  the  twenty-ninth  paragraph  of  these  spec¬ 
ifications  there  is  described  generally  a  diaphragm 
to  be  placed  in  each  filter-tank,  at  about  three  feet 
above  its  bottom.  Said  diaphragm  is  to  consist  of 
transverse  I-beams,  of  suitable  size  and  sufficient  in 
number  to  support  the  weight  of  the  sand  layer  and 
resist  all  other  stresses  to  which  they  may  be  sub¬ 
jected.  Upon  these  I-beams  are  to  be  placed  mats 
of  wire  cloth,  composed  of  three  or  more  sheets  — 


-  31  - 


say,  first,  a  brass  wire  cloth,  made  of  No. . (iVinch) 

square -drawn  wire,  with  one  mesh  to  two  inches; 
second,  one  made  of  No.  13  brass  wire,  with  five 
meshes  to  the  inch;  and  third,  one  made  of  No.  31 
brass  wire,  with  forty-five  meshes  to  the  inch,  or  their 
equivalent  in  other  numbers  of  cloths  and  sizes  of 
wire  and  mesh.  The  first  two  cloths,  or  such  num¬ 
ber  as  found  needful,  are  to  be  rolled  to  flatten  the 
individual  wires,  stiffen  the  cloth,  and  bring  it  to  as 
close  an  approximation  to  a  plane  as  may  be  found 
practicable,  similar  to  the  treatment  of  wire  cloth 
for  malt-house  floors.  These  cloths  are  to  be  fas¬ 
tened  together  at  intervals  of  say  2  by  2  inches,  or 
other  intervals,  with  brass  rivets.  The  mats  thus 
constructed  of  three  or  more  sheets  of  wire  cloth  are 
to  be  laid  on  and  supported  upon  steel  I-beams, 
placed  transversely  across  the  filter-tanks  at  inter¬ 
vals  of  about  3  feet  9  inches  between  centers,  at  an 
elevation  of  about  3  feet  from  the  bottom.  These 
mats  shall  be  made  in  lengths  sufficiently  great  to 
go  clear  across  the  tanks  transversely;  the  wires  of 
the  lower  cloth  are  to  penetrate  the  sides  and  ends 
of  the  filter-tanks  through  properly  punched  holes 


—  32  — 


therefor,  and  riveted  or  bolted  water  tight  on  the  out¬ 
side.  The  mats  are  to  be  made  in  widths  of  7  feet  6 
inches  and  30  feet  3  inches  long,  besides  the  length  of 
the  lower  wires  required  to  penetrate  the  sides  and 
ends  of  the  filter-tanks.  Longitudinally  of  the  filter- 
tanks  the  upper  two  mats  of  wire  cloth  shall  abut,  be 
fitted  closely  together  upon  the  I-beams  with  splices 
in  the  meshes  of  the  lower  cloth,  and  fastened 
thereto  by  drift-rivets  driven  through  the  meshes  of 
the  upper  webs  of  the  cloth  and  the  individual  wires 
of  the  lower  web,  as  also  into  the  upper  flanges  of 
the  I-beams,  so  as  to  fasten  the  three  or  more  webs 
of  wire  of  the  mat  and  the  I-beams  together  along 
each  side  of  the  line  of  junction.  The  drift  rivets 
shall  be  of  brass,  one-eighth  of  an  inch  in  diameter. 
The  office  of  the  mats  is  to  support  the  sand  layer 
in  each  filter-tank,  and  to  transmit  all  weights  and 
stresses  to  the  I-beams  inside  above  the  bottoms  of 
the  filter-tanks. 

55.  The  mat  formed  by  uniting  the  three  or 
more  cloths,  fastening  them  together  and  to  the  I- 
beams,  is  to  perform  the  joint  office  of  carrying  or 
resisting  all  stresses,  and  at  the  same  time  consti- 


—  33  — 


tute  what  is  ordinarily  called  the  strainer  system  in 
mechanical  filters. 

56.  This  departure  from  all  previous  methods  of 
constructing  the  sand  support  and  strainer  system 
is  made,  among  other  reasons,  for  the  purpose  of 
supporting  the  sand,  withdrawing  the  water  there¬ 
from  during  the  operation  of  filtering,  and  passing 
in  the  wash  water  in  a  reverse  direction  for  washing 
the  sand  layer,  all  in  a  manner  which  will  withdraw 
from,  and  inject  into,  the  lower  portion  of  the  sand 
layer  the  filtered  and  wash  water,  respectively,  and 
distribute  such  action  uniformly  over  the  entire  hori¬ 
zontal  sectional  area  of  the  filter-tank,  a  result  not 
accomplished  by  any  hitherto  devised  method  of  sand 
support,  water  passage,  or  strainer  system  for  either 
filtering  of  water  or  washing  of  sand;  the  conten¬ 
tion  here  being  that  the  closer  the  approximation  to 
a  uniform  rate  of  flow  of  water  through  every  square 
inch  of  horizontal  tank  section,  the  more  efficient 
will  be  the  process;  that  is,  the  more  water  will  be 
clarified  in  a  unit  of  time  for  a  given  area  of  filter 
surface,  and  the  smaller  the  proportionate  volume  of 

wash  water  required  to  keep  the  sand  layer  clean. 

3 


—  34  — 


This  wire -cloth  mat  substitute  for  cone  valves, 
strainer  cups,  perforated  tubes,  slotted  tubes  and  all 
like  devices,  will  obviate  a  great  fault  common  to 
them  all;  that  is,  local  and  unequal  draught  from 
the  sand  layer  while  filtering ;  and  nozzle  effect,  with 
local  and  unequal  currents  in  the  process  of  wash¬ 
ing  the  sand  layer. 


GATE -VALVES. 

5  7.  The  thirty -eight  gate- valves,  embracing 
twenty-eight  20-inch,  two  30-inch,  six  36 -inch,  and 
two  48-inch,  are  each  to  be  operated  by  an  electric 
motor,  which  may  have  its  armature  shaft  coupled 
directly  to  the  screw-stems  of  the  gate-valves  in  each 
case,  or  through  such  intermediate  devices  as  may 
be  needed,  but  in  such  manner  as  to  reduce  the 
mechanism  to  the  fewest  and  simplest  parts,  and  to 
operate  the  various  gates  with  the  greatest  facility 
and  dispatch.  The  consumption  of  time  involved  in 
operating  valves  in  the  process  of  water  purification 
by  mechanical  filters  constitutes  a  very  large  per¬ 
centage  of  the  total  time.  It  is  therefore  of  great 


—  35  — 


importance  that  these  valves  be  operated  by  the  sim¬ 
plest  and  quickest  devices,  which  it  is  believed  can 
be  secured  by  the  adoption  and  rise  of  electric 
motors. 

58.  The  wires  and  insulators,  the  switches,  keys 
or  plugs  for  manipulating  the  motors  which  operate 
the  gate-valves,  the  volt-meters,  am-meters,  the  neces¬ 
sary  water-level  and  pressure  gauges,  which  latter 
may  be  of  the  continuously  recording  type  or  equiv¬ 
alent  acceptable  type,  a  standard  clock  or  chronome¬ 
ter,  with  all  necessary  pipes  and  valves  for  drawing 
samples  from  which  to  judge  currently  of  the  proper 
functions  of  all  the  divisions  into  which  the  purifi¬ 
cation  process  is  divided,  are  all  to  be  furnished, 
properly  put  up,  connected,  and  mounted  upon 
switchboards,  or  in  cabinets,  located  at  the  north  or 
south  ends  of  the  filter-house,  to  serve  the  northerly 
and  southerly  groups  of  filter-tanks,  respectively. 
By  this  arrangement  one  man  alone  can  operate  a 
group  of  filters,  have  constantly  before  him  the  vari¬ 
ous  conditions  of  the  process,  and  thereby  will  be 
enabled  to  judge  promptly,  without  moving  from  his 
post  of  observation,  what  is  going  on,  or  what  regu- 


—  36  — 


lation  is  necessary  in  order  to  maintain  an  effluent 
continuously  satisfactory  in  quality  and  at  uniform 
rates  of  flow.  By  sucli  an  arrangement  the  judg¬ 
ment  and  the  most  important  numerical  observation 
record  of  but  one  man  is  to  be  relied  upon,  and 
consequently  a  greater  degree  of  discipline  and  effi¬ 
ciency  of  service  maintained. 

59.  The  screw -stems  of  the  several  gate -valves 
hereinbefore  enumerated  shall  be  of  the  best  quality 
of  Tobin  Bronze,  and  have  the  diameters  of  the  stem 
at  the  root  of  the  screw-threads  of  the  following 
dimensions : 

For  20-inch  gate-valves  2%  -inches  in  diameter. 

“  30  “  “  3^ 

“  36  “  “  4 

“  48  “  “  5 

and  the  collars  of  these  screw-stems  shall  also  be  of 
Tobin  Bronze  and  screwed  to  the  stems  with  a  V 
thread  about  half  the  depth  of  the  square  thread  on 
the  screw -stem,  and,  in  addition  thereto,  the  collar 
shall  be  further  secured  by  being  brazed  to  the 
screw-stem,  or  the  collars  may  be  secured  to  the 


u 

u 

u 


—  37 


stems  in  such  other  manner  as  may  be  acceptable 
to  the  Water  Company. 

60.  All  glands,  stuffing-boxes,  collar  bearings, 
where  the  screw-stem  passes  through  the  dome  of 
the  case,  are  to  be  brass-bushed,  so  as  to  have  no 
contact  between  the  brass  screw-stems  or  collars  with 
the  cast-iron.  The  gland  bolts  of  the  stuffing-boxes 
are  to  be  of  brass. 

61.  The  discs  for  the  gate- valves  are  to  be  of 
cast-iron,  with  brass  mountings  for  the  valve  facings. 

62.  All  the  wedge  pieces,  upper  and  lower  sec¬ 
tions,  are  to  be  made  of  solid  brass,  with  threads 
cut  into  the  solid  metal  and  not  in  the  bushing 
pieces.  The  brass  shall  be  of  such  quality  as  will 
be  acceptable  to  the  Water  Company. 

63.  All  machine  work,  fitting  up,  making  joints, 
number  and  size  of  bolts,  bolt  holes  are  to  be  done 
in  the  best  workmanlike  manner. 

64.  All  the  gate-valves  shall  be  constructed  and 
fitted  up  under  the  inspection  of  the  Water  Com¬ 
pany’s  agent;  and,  after  having  been  constructed  and 
fitted  up,  each  of  the  gate-valves  to  be  placed  under 
the  floor  level  of  the  filter-house  shall  be  subjected 


—  38  — 


to  a  hydrostatic  pressure  of  300  pounds  per  square 
inch;  and  those  to  be  located  above  the  floor  level 
of  said  house,  to  200  pounds  per  square  inch ;  under 
which  all  joints,  gate  faces,  bolts  and  packings  are 
to  be  water-tight,  and  no  part  of  any  of  the  valve 
cases  or  bodies  shall  spring  more  than  one-sixteenth 
of  an  inch  in  any  direction  upon  applying  the  said 
hydrostatic  pressure  to  the  inside  of  them. 

65.  These  gates  are  to  be  operated  by  electric 
motors,  and  therefore  the  screw-stems  shall  be  left 
without  nuts,  spur,  or  bevel  gears;  but  instead,  shall 
be  so  finished  as  to  have  connected  with  them,  by 
key-ways  or  equivalents,  a  worm-wheel  or  other  de¬ 
vice  for  receiving  electric  energy  to  operate  them. 


AGITATOR. 

66.  The  agitator  is  to  be  a  mechanical  contrivance 
for  stirring  the  sand  in  the  filter-tanks  during  the 
process  of  water  washing  it,  by  means  of  seventy- 
two  rotating  vertical  shafts  fitted  with  radial  spines. 

67.  It  comprises  the  following  mechanical  devices: 

First — An  electric  traveling-crane,  sup- 


—  39  — 


ported  upon,  and  to  travel  on,  ways  placed 
on  the  side  walls  of  the  filter-house,  the 
bridge  of  which  crane  will  occupy  a  hori¬ 
zontal  space  of  no  feet  wide  by  150  feet 
long.  The  bridge  will  consist  of  five  pairs 
of  girders  spanning  the  house  transversely, 
which  girders  are  to  be  united  horizontally 
by  beams,  ties,  and  struts,  so  as  to  form  the 
said  bridge  of  the  traveling-crane.  The 
bridge  is  to  be  supported  upon  ten  trucks, 
the  wheels  of  which  are  to  travel  on  the 
above  named  ways  along  the  sides  of  the 
filter-house.  The  bridge  is  to  be  operated 
by  a  single  electric  motor,  appended  to  the 
middle  one  of  the  five  pairs  of  girders. 

Second — A  trolley,  32  ft.  wide  by  150  ft. 
long,  horizontally  connected  by  beams,  ties, 
and  struts,  in  such  a  manner  as  to  cause 
the  trucks  to  move  synchronically  upon  the 
ways  of  the  before  named  five  pairs  of 
girders  spanning  the  house  transversely, 
which  trolley  is  to  be  operated  by  a  single 
electric  motor  gearing  into  the  end  wheels 


—  40  — 


of  the  five  trucks  by  which  the  trolley  is 
to  be  moved. 

68.  The  agitator  is  to  be  a  horizontal  grille,  30 
feet  inches  wide  by  149  feet  6  inches  long,  com¬ 
posed  of  two  longitudinal  plate  girders,  connected 
transversely  by  thirty-six  (18  pairs)  I-beams,  together 
with  all  needed  horizontal  strut  and  tie  bracing,  with 
vertical  gusset  and  angle  bar  stays  and  connections. 
From  the  eighteen  pairs  of  transverse  I-beams  there 
are  to  be  suspended  from  each  pair  four  agitators, 
seventy-two  in  all,  which  agitators  are  to  be  hung  in 
cast-iron  housings  upon  ball-bearings  or  fricton  roller 
supports  placed  and  supported  upon  the  said  18 
pairs  of  I-beams.  The  single  members  of  agitator 
will  consist  each  of  a  section  of  4-inch  wrought-iron 
tubing  as  a  vertical  shaft,  weighing  20  pounds  to  the 
foot,  fitted  with  collar  and  cap  at  top,  worm-wheel 
23  inches  below  the  top,  and  ten  spines,  extending 
radially  from  the  wrought-iron  tubing,  4  feet  length 
of  radius,  and  placed  circumferentially  at  angles  of 
about  45  degrees  with  each  other.  Longitudinally 
of  the  grille  these  agitator  members  will  be  placed 
in  four  parallel  rows,  eighteen  to  a  row,  and,  trans- 


—  41  — 


versely,  eighteen  rows  four  to  a  row.  Upon  the 
tops  of  the  I-beams  there  are  to  be  laid  four  lines 
of  steel  shafts,  fitted  with  worms,  gearing  into  the 
worm-wheels  on  the  vertical  hollow  four-inch  shafts, 
properly  housed  upon  the  said  I-beam.  Each  of  the 
four  lines  of  shafting  is  to  be  operated  by  two  elec¬ 
tric  motors  of  sufficient  power  to  rotate  eighteen 
agitators  at  the  same  time.  The  worms  on  the 
four  lines  of  shafts  shall  be  alternately  right-handed 
and  left-handed  in  their  pitch,  so  as  to  neutralize 
cumulative  tension  and  compression  therein.  The 
radial  spines  on  the  vertical  shafts  of  the  seventy- 
two  members  are  so  placed  in  each  with  reference 
to  those  in  the  others  that  the  entire  group  of  the 
seventy-two  can  be  rotated  at  the  same  time  with¬ 
out  said  spines  interfering  with  each  other. 

69.  The  grille  of  the  agitator,  with  its  four  lines 
of  worm-shafts  and  seventy-two  agitator  fans,  is  to  be 
supported  upon,  or  suspended  from,  a  trolley  con¬ 
sisting  of  ten  trucks  moving  transversely  across  the 
house  on  top  of  the  five  pairs  of  girders  of  the  trav¬ 
eling-crane  bridge.  There  are  to  be  ten  steel  screw 
suspension  rods,  depending  from  ten  bolsters  in  the 


42  — 


trolley  trucks,  with  ball  and  socket  supports,  so  as 
to  permit  the  agitator  grille  to  swing  freely  and 
allow  the  worm-wheel  nuts  to  more  readily  adjust 
themselves  at  right-angles  to  the  axes  of  the  sus¬ 
pension  screws.  By  means  of  the  ten  suspension 
screws,  worm-wheel  nuts  and  worm-shafts,  the  grille 
is  to  be  lowered  into  the  filter-tanks  and  lifted 
therefrom  in  a  vertical  direction,  the  lowering  and 
lifting  being  accomplished  by  rotating  the  worm- 
wheel  nuts  on  said  suspension  screws  by  four  lines 
of  worm-shafts,  operated  by  eight  combined  electric 
motors,  two  on  each  line  of  shaft.  The  grille  is  to 
move  transversely  from  tank  to  tank  in  each  group 
by  a  single  electric  motor  operating  the  ten  trolley 
trncks  from  which  the  grille  is  suspended.  The 
grille,  complete,  will  weigh  about  65  tons,  which 
weight  is  to  be  transferred  to  the  trucks  of  the 
trolley  by  the  ten  screw  suspension  rods  before 
named,  through  the  trucks  to  the  bridge  of  the 
traveling-crane,  and  thence  to  the  walls  of  the  house. 


—  43  — 


COAGULATING  DEPARTMENT. 

70.  This  division  is  to  be  devoted  to  the  prepa¬ 
ration  of  the  sulphate  of  alumina  solution  as  coagu¬ 
lant,  and  the  introduction  of  the  same  into  the  sub¬ 
sided  water  for  coagulation  before  the  water  enters 
the  filters.  It  will  consist  of  nine  principal  parts, 
viz : 

71.  First — A  house  60  feet  by  about 
120  or  less  feet  in  plan  on  the  outside  and 
67  feet  high  above  the  filter-house  floor. 

72.  Second — A  steel  precipitating  tank 
or  stand-pipe  50  feet  in  diameter,  erected 
on  a  foundation  plane  14  feet  below  that 
of  the  filter-house  floor,  and  is  to  extend  61 
feet  high  above  the  said  floor,  or  34  feet 
above  high  water  in  Crescent  Hill  Reservoir. 

The  tank  or  stand-pipe  is  to  be  fitted  with 
48-inch  inflow  and  outflow  nozzles,  a  48-incli 
floating  weir  pipe  and  a  meter,  which,  all 
taken  together,  are  to  perform  the  functions 
of  admitting  and  measuring  the  settled 
water  from  Crescent  Hill  Reservoir  into  it, 


—  44  — 


coagulating  it  and  emitting  it  therefrom  to 
the  filters,  all  as  hereinafter  described. 

73.  Third — Four  concentric  steel-plate 
sulphate  of  alumina  dissolving  tanks,  25, 
35.35,  43.3,  and  50  feet  in  diameter,  respect¬ 
ively,  and  25  feet  high  above  lower  section 
of  pipe. 

74.  Fourth — One  steel-plate  feed-tank, 
10  feet  in  diameter  and  5  feet  high,  into 
which  the  sulphate  of  alumina  solution  from 
the  four  preparing  tanks  is  to  be  received, 
and  from  it,  under  an  uniform  head,  deliv¬ 
ered  to  the  feed-pump  hereinafter  described. 

75.  Fifth — A  bronze  or  aluminum,  acid- 
proof,  48-inch  in  diameter,  horizontal  tur¬ 
bine-meter,  set  upon  the  horizontal  flange 
of  a  90-degree  vertical  elbow  to  be  connected 
with  the  line  of  48-inch  pipe  entering  the 
tank  from  Crescent  Hill  Reservoir. 

76.  Sixth — A  bronze  or  aluminum,  acid- 
proof,  piston  pump,  to  be  operated  from  the 
vertical  shaft  of  the  turbine-meter  last 
named  for  feeding  the  alumina  solution  at 


—  45 


a  rate  varying  with  the  rate  of  inflow  of 
the  settled  water  from  Crescent  Hill  Reser¬ 
voir  into  the  precipitating  tank. 

77.  Seventh — A  floating  weir  in  the 
stand-pipe,  by  means  of  which  the  coagu¬ 
lated  water  will  be  withdrawn  from  near 
the  surface  in  said  stand-pipe  and  discharged 
into  the  48-inch  main  leading  to  the  branch 
pipes  supplying  the  filters. 

78.  Eighth — All  necessary  pipes,  valves, 
fittings,  and  equipments,  necessary  for 
making  the  above  enumerated  parts  perform 
their  functions  for  the  purposes  intended. 

79.  Ninth — The  equipments  hereinbe¬ 
fore  enumerated  in  paragraphs  73,  74,  76, 
and  78,  with  all  the  appurtenances  there¬ 
unto  belonging,  are  to  be  located  in  the 
upper  story  of  the  coagulating  house  and 
upper  section  of  the  stand-pipe,  at  such  an 
elevation  above  the  sulphate  of  alumina 
solution  feed  tank  as  will  permit  the  solu¬ 
tion  to  be  fed  by  gravity  into  said  tank 


—  46 


from  the  tanks  described  in  paragraphs  73 
and  74. 

80.  The  greater  proportion  of  the  space  in  the 
coagulant  house  will  be  occupied  by  the  precipitat¬ 
ing  tank  or  stand-pipe;  the  remainder  of  the  space, 
on  all  sides  thereof,  will  be  devoted  to  storage 
rooms,  chemical  laboratory,  and  such  uses  as  may 
arise  therefor.  The  height  of  the  vacant  space  can 
be  divided  into  such  number  of  stories  as  may  best 
suit  the  requirements  of  the  service.  The  upper 
floor  of  the  house  will  be  utilized  for  placing  and 
operating  the  coagulant  devices  as  hereinafter  de¬ 
scribed.  The  house  will  be  provided  with  both  a 
stairway  and  an  electric  elevator,  for  the  purpose  of 
convenient  and  speedy  communication  with  the  sev¬ 
eral  floors  thereof,  as  also  for  elevating  supplies  to 
the  coagulant  floor.  The  house,  with  the  floors 
and  stairway,  is  to  be  built  by  the  Water  Company 
and  is  not  to  be  considered  as  a  part  of  the  filter 
contract. 

81.  The  precipitating  tank  or  stand-pipe,  as  be¬ 
fore  stated,  will  be  50  feet  in  diameter,  75  feet  high 
above  its  foundation,  and  61  feet  high  above  the 


—  47  — 


filter  house  floor.  The  foundation  of  this  tank  or 
stand-pipe  will  be  on  a  level  bed  of  concrete  four¬ 
teen  feet  below  the  level  of  the  filter -house  floor, 
making  the  total  height  of  the  tank  or  stand-pipe 
75  feet.  (The  Water  Company  will  build  the  con¬ 
crete  foundation.)  This  tank  is  to  be  built  of  plate- 
steel,  in  fifteen  rings,  5  feet  in  height  each,  exclusive 
of  lap.  The  bottom  of  the  tank  is  to  be  also  of 
plate-steel,  with  a  dome-inverted  or  spherical-shaped 
section  with  a  versed  sine  of  20  inches,  or  flat,  if 
preferred  by  the  Water  Company. 

The  thickness  of  the  bottom  is  to  be . inches. 


tt 

tt 

it 

sheets 

in 

the  i  st  ring,  ^ 

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tt 

tt 

tt 

u 

u 

2d 

u 

1  1 

16 

tt 

tt 

tt 

tt 

It 

u 

3d 

a 

H 

tt 

u 

tt 

(( 

u 

u 

4  th 

u 

T  6 

tt 

tt 

a 

(( 

it 

u 

5th 

u 

/4 

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a 

u 

u 

u 

6th 

ft 

176 

tt 

tt 

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7th 

tt 

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8th 

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it 

u 

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10th 

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y2 

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ft 

u 

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1 1  th 

tt 

y* 

tt 

—  48 


The  thickness  of  the  sheets  in  the  12th  ring,  T5g  inches. 

“  “  “  “  “  13th  “  %  “ 

u  it  it  it  it  I4th  «  y  it 

“  a  a  a  a  ^  a  y  u 

82.  The  circumferential  joints  of  the  tank  or 
stand-pipe  are  to  have  a  lap  of  six  inches,  and  be 
double  -  riveted  with  %  -  inch  rivets,  placed  with  a 
pitch  of  three  inches.  The  vertical  joints  shall  abut 
with  a  cover-plate  twelve  inches  wide  on  the  out¬ 
side,  and  be  double  -  riveted  with  ^-inch  rivets 
with  a  pitch  of  three  inches.  At  the  upper  end  of 
the  tank  there  shall  be  a  continuous  angle  bar  3- 
inch  x  3-inch  x  y2  -inch  in  section,  surrounding  and 
riveted  to  the  tank  with  24 -inch  rivets  placed  with 
a  pitch  of  three  inches,  so  as  to  stiffen  the  tank  as 
also  to  make  a  water-tight  joint  between  the  tank 
and  said  angle  bar.  The  sections  of  the  angle  bar 
shall  be  made  as  long  as  practicable  so  as  to  reduce 
the  number  of  joints,  where  splices  will  have  to  be 
made  securely  and  water-tight. 

83.  On  the  northerly  and  southerly  sides  of  the 
center  of  the  tank  or  stand-pipe,  at  elevations  coin¬ 
cident  with  the  grade  of  the  48-inch  supply  main, 


—  49  — 


there  shall  be  placed  two  cast-iron  nozzles  48  inches 
in  diameter,  to  admit  and  emit  the  settled  water 
before  and  after  coagulation,  respectively,  flanged  to 
the  curvature  of  the  side  of  the  tank  and  riveted 
thereto  with  two  concentric  rows  of  i-inch  rivets 
with  a  pitch  of  three  inches,  which  nozzles  shall  be 
each  12  inches  long,  the  inner  ends  ending  with 
faced  and  drilled  flanges  placed  at  right  angles  to 
their  axes,  and  their  outer  ends  with  the  ordinary 
form  of  cast-iron  sockets  on  48-inch  cast-iron  pipe. 

84.  To  the  48-inch  inflow  nozzle  inside  of  the 
tank  there  shall  be  attached  a  bronze  or  aluminum, 
acid-proof,  48 -inch  meter,  of  the  horizontal  turbine 
type,  with  its  shaft  suitably  supported  at  the  bottom, 
to  extend  vertically  to  the  top  of  the  tank  or  stand¬ 
pipe,  which  meter  is  to  measure  the  volume  of  the 
inflowing  water,  and  from  the  shaft  of  which  some 
mechanical  energy  (or  power)  is  to  be  transmitted 
for  purposes  and  to  points  to  be  hereafter  described. 
The  meter  is  to  be  of  special  design,  of  large  diam¬ 
eter,  so  as  to  pass  the  requisite  volume  of  water  at 
low  speed,  say  ten  revolutions  per  minute.  If  found 


4 


-50- 


necessary,  the  48-inch  inflow  nozzle  can  be  increased 
in  diameter. 

85.  To  the  48-inch  outflow  nozzle  inside  of  the 
tank  is  to  be  attached  the  delivery  end  of  a  48-inch 
vertical  floating  tube  and  weir,  to  be  erected  in  the 
stand-pipe,  for  the  purpose  of  emitting  the  coagu¬ 
lated  water  therefrom  to  the  filters,  always  taking 
the  water  from,  at,  or  near  the  surface  of  the  water 
in  said  tank  or  stand-pipe. 

86.  To  the  steel  storing  and  distributing  tank 
(see  paragraph  72)  there  shall  be  attached  a  bronze 
or  aluminum  piston  pump,  for  feeding  and  regulat¬ 
ing  the  sulphate  of  alumina  solution  to  the  inflow¬ 
ing  water  below  the  meter  described  in  paragraph 
84.  This  pump  shall  be  duplicated  in  all  its  parts 

ready  for  substitution  and  reciprocal  service,  be  of 

* 

the  internally -packed  plunger  variety,  and  be  con¬ 
nected  directly  with  a  disc-crank  on  the  upper  end 
of  the  vertical  shaft  of  the  meter  described  in  said 
paragraph  84.  The  connection  between  said  disc- 
crank  and  the  pump  shall  be  made  by  means  of  a 
crank-pin  and  connecting-rod,  cross-head  and  guides. 
The  pump  shall  be  located  at  such  elevation  on  the 


—  51  — 


receiving,  storing,  and  distributing  tank  as  to  always 
have  its  suction  submerged  by  the  sulphate  of  alu¬ 
mina  solution.  The  displacement  of  this  pump  per 
revolution  shall  be  such  as  shall  deliver  a  one  per 
cent,  sulphate  of  alumina  solution  at  such  rate  as  to 
supply  one-quarter  of  a  grain  of  sulphate  of  alumina 
per  gallon  of  water  with  a  stroke  of  one  inch,  and 
so  designed  and  constructed  that  this  stroke  may  be 
extended  to  thirty-two  inches  in  length  by  manual 
adjustment  while  the  meter  and  pump  are  in  motion. 
This  variation  of  stroke  from  one  to  thirty -two 
inches  in  length  will  therefore  enable  the  sulphate 
of  alumina  application  to  be  varied  from  one-quarter 
to  eight  grains  per  gallon  of  water.  The  manual 
adjustment  here  spoken  of  can  be  accomplished  by 
placing  the  crank-pin  for  the  connecting-rod  between 
the  pump  and  the  meter -shaft  in  a  sliding  block 
placed  in  a  slotted  disc-crank,  which  sliding  block 
and  crank-pin  can  be,  by  the  use  of  a  hand-ratchet 
operated  a  micrometer  screw,  so  adjusted  as  to 
gradually  increase  or  decrease  the  length  of  the 
crank  radius  by  sliding  the  block  from  or  towards 
the  center  of  the  meter-shaft,  thereby  increasing  or 


—  52  — 


decreasing  the  length  of  pump  stroke  and  the  vol¬ 
ume  of  sulphate  of  alumina  solution  correspondingly. 

87.  The  delivery  from  this  pump  of  sulphate  of 
alumina  solution  shall  be  discharged  into  a  capacious 
and  open-ended  pipe,  above  high  water  level  in  Cres¬ 
cent  Hill  Reservoir,  so  that  the  solution  will  find  its 
way  by  gravity  through  properly  arranged  pipes  to 
the  settled  inflowing  water  under  the  meter  herein¬ 
before  described. 

88.  By  this  arrangement  a  one  per  cent,  sulphate 
of  alumina  solution  can  be  fed  into  the  settled  water 
at  rates  that  will  add  from  one -quarter  to  eight 
grains  per  gallon  of  water. 

89.  The  foregoing  aluminum  solution  feed  de¬ 
vices  are  positive;  by  the  use  of  them  there  is  no 
danger  of  failing  to  feed  at  the  desired  rate,  except¬ 
ing  alone  the  modification  of  it  by  the  slip  or  lost 
action  in  the  sulphate  of  alumina  solution  feed  and 
regulating  pump.  This  pump  can  be  constructed 
and  operated  with  such  precision  as  to  maintain  an 
efficiency  of  not  less  than  98  per  cent.,  subjecting 
the  application  of  the  sulphate  of  alumina  solution 
to  a  possible  variation  of  two  per  cent,  from  the  de- 


—  53  — 


sired  volume,  and  the  sulphate  of  alumina  to  one- 
five  -  thousandths  of  one  per  cent,  from  the  desired 
weight.  This,  it  is  believed,  is  as  close  an  approxi¬ 
mation  to  uniformity  of  application  as  is  practicable, 
depending,  as  it  does,  upon  the  single  function  of 
the  pump’s  efficiency.  The  adjustment  of  the  crank- 
throw  can  be  made  along  a  graduated  scale,  with 
pointer  that  will  make  legible  the  grains  per  gallon 
of  aluminum  sulphate  which  is  being  applied.  The 
scale  used  must  be  graduated  to  read  grains,  or  frac¬ 
tions  of  a  grain,  of  aluminum  sulphate  per  gallon  of 
water  for  a  i  per  cent,  solution  as  standard.  If 
other  solutions  are  used,  they  must  be  multiples  of 
the  standard  solution,  and  shall  from  it  increase  or 
decrease  in  strength  in  geometrical  ratio  correspond¬ 
ing  to  an  increasing  or  decreasing  series  in  the  rate 
of  grains  per  gallon,  so  that  the  readings  of  the 
scale  may  be  readily  converted  into  grains  per  gal¬ 
lon  by  the  use  of  the  proper  multiplier  or  divisor 
applied  to  the  solution  of  greater  or  less  strength 
than  the  standard  solution ;  which  is  to  say  that, 
with  a  one  per  cent,  solution,  the  scale  reads  grains 
of  sulphate  of  alumina  per  gallon  of  water.  With 


—  54  — 


greater  or  less  strengths  of  solution,  the  readings 
will  be  the  same  multiples  of  the  one  per  cent,  solu¬ 
tion  readings  as  the  solution  then  in  use  is  of  the 
one  per  cent,  solution.  Hence,  with  the  adjustable 
crank-throw  in  the  disc  on  the  meter -shaft  and  the 
known  strength  of  the  sulphate  of  alumina  solution, 
the  rate  per  gallon  in  grains  can  be  at  any  time 
varied  as  required,  simply  by  shifting  the  crank-pin, 
and  at  the  same  time  determine  it  by  a  reading  of 
the  scale,  or  the  application  of  a  proper  multiplier 
or  divisor  to  such  reading.  The  pump  is  to  be  a 
simple  meter  and  regulator  of  the  application  of 
sulphate  of  alumina  solution,  work  under  low  head, 
discharge  the  solution  into  an  open-ended  pipe, 
whence  it  is  to  flow  by  gravity  into  the  inflowing 
water  under  the  meter. 

90.  Throughout  the  coagulating  department,  for 
the  purpose  of  protecting  the  iron  against  corrosion 
from  the  sulphate  of  alumina  solution,  the  pipes 
shall  be  of  the  ordinary  wronght-iron  screw-jointed 
kind,  lead-lined.  The  crosses,  tees,  elbows,  and  fit¬ 
tings  shall  be  similarly  lined.  All  valves  through¬ 
out  shall  be  of  acid-proof  bronze.  The  stand-pipe, 


—  55  — 


the  receiving,  storing,  and  distributing-tank,  and  all 
ducts  and  passages  made  of  iron  or  steel  coming  in 
contact  with  the  sulphate  of  alumina  solution, 
wherever  found  practicable,  shall  be  lined  with  Port¬ 
land  cement  mortar  to  a  thickness  varying  from 
three-quarters  to  one  inch.  The  steam  pipes  and 
fittings  shall  be  of  the  ordinary  wrought -iron  kind, 
fitted  with  brass  valves. 


SAND. 

91.  The  sand  layer  in  each  filter-tank  shall  be 
36  inches  deep,  aggregating  484  cubic  yards  to  each 
tank.  It  shall  be  Ohio  River  sand,  0.42  millimeters 
in  effective  size,  with  a  uniformity  coefficient  of  1.80 
— subject  to  such  modifications  as  may,  upon  further 
investigation,  be  found  most  expedient,  both  as  re¬ 
gards  effective  size  and  uniformity  coefficient.  The 
sand  must  be  absolutely  clean  from  soil,  clay,  and 
all  foreign  substances.  The  foregoing  requirements 
make  it  necessary  that  the  sand  be  thoroughly 
washed,  screened,  and  graded,  so  as  to  meet  the 
effective  size  and  uniformity  coefficient  requirements. 


—  56  — 


92.  For  the  purpose  of  sterilizing  the  sand  layer 
in  each  of  the  three  filter-tanks,  there  shall  be  in¬ 
troduced  two  sets  of  three  3-inch  steam  pipes  from 
opposite  ends  of  each  filter-tank,  making  six  to  a 
tank.  These  pipes  are  to  be  suspended  from  the 
I-beams  which  support  the  strainer  system  and  sand 
layer.  The  said  3-inch  pipes  inside  of  the  filter- 
tanks  are  to  be  perforated  along  their  upper  one- 
third  circumferences  with  one-quarter  inch  holes 
spaced  at  intervals  of  one  inch  between  centers. 
Each  of  these  pipes  is  to  have  a  valve  outside  of 
the  filter-tank.  There  shall  be  two  main  steam 
pipes,  one  for  each  end  of  the  southerly  group  of 
filters,  which  are  to  extend  from  the  easterly  tank 
across  the  house  westwardly  and  terminate  in  a 
valve  inside  of  the  house  wall.  The  pipe  shall  be 
ordinary  wrought-iron  steam  pipe  and  fittings,  with 
brass  valves. 


GAUGES. 


93.  The  gauges  shall  be  of  the  best  design  and 
construction  and  be  approved  by  the  Water  Com- 


—  57  — 


pany.  They  shall  all  be  12-inch  diameter  of  dial 
with  nickel-plated  cases.  They  shall  be  connected  in 
the  most  approved  manner,  as  located  and  approved 
by  the  Water  Company. 

94.  There  shall  be  six  pressure  gauges  connected 
to  the  wash  water  supply  pipes  where  they  enter 
the  lower  compartments  of  the  filter-tanks,  be  piped 
to  and  put  up  in  the  observation  cabinet  in  the 
south  end  of  the  filter-house.  They  shall  be  combi¬ 
nation  gauges,  and  graduated  to  read  both  pressure 
in  pounds  and  height  in  feet,  150  and  345,  respect¬ 
ively. 

95.  There  shall  be  six  vacuum  gauges  connected 
with  the  floating  weir,  piped  to  and  put  up  in  the 
observation  cabinet  at  the  south  end  of  the  filter- 
house,  which  gauges  shall  read  the  vacuum  in  pounds 
as  well  as  feet,  15  and  35,  respectively. 

96.  There  shall  be  two  vacuum  gauges  to  indi¬ 
cate  the  depth  of  water  in  the  clear-water  reservoir, 
and  its  elevation  plus  Plane  of  Reference.  One  of 
these  gauges  is  to  be  located  at  the  southerly  end 
of  the  filter-house  and  the  other  at  the  northerly 


-58- 


end;  they  shall  be  graduated  to  read  pounds  and 
feet,  15  pounds,  and  35  and  148  feet,  respectively. 

97.  There  shall  be  one  pressure  gauge,  graduated 
to  read  pounds  pressure  and  feet  height,  connected 
with  the  stand-pipe  or  precipitating  tank,  piped  to 
the  observation  cabinet  and  there  put  up,  50  and 
120,  respectively. 

98.  There  shall  be  two  combination  pressure  re¬ 
cording  gauges,  graduated  to  read  to  pounds  and 
feet,  150  and  345,  respectively,  one  connected  with 
the  36-inch  clear- water  supply  main  to  the  city, 
put  up  in  the  northwesterly  corner  of  the  filter- 
house,  and  the  other  with  the  48 -inch  clear -water 
main  to  the  city  and  located  in  the  southwesterly 
corner  of  the  filter-house. 

99.  All  the  foregoing  gauges  will  be  of  standard 
construction,  such  as  the  Water  Company  may 
select,  except  the  dials,  which,  on  account  of  their 
location  and  service,  may  have  to  be  specially  grad¬ 
uated,  to  read  as  heretofore  specified.  The  tablets 
upon  which  the  gauges  are  to  be  mounted  shall  be 
variegated  black  marble,  polished,  of  such  quality, 
design,  and  finish  as  the  Water  Company  may  select. 


-59  — 


CHRONOMETERS. 

ioo.  There  will  be  required  one  chronometer  for 
the  filter-house  and  one  for  the  coagulant-house, 
each  of  which  is  to  be  a  first-class  30-day  timepiece 
designed  and  constructed  for  electric  regulation. 
They  are  to  be  pendulum  clocks.  The  diameters  of 
the  dials  shall  be  large  enough  to  have  graduated 
circles  two  feet  in  diameter,  engraved  with  bold¬ 
faced  Roman  numerals,  the  clocks  fitted  with  hour, 
minute,  and  second  hands,  and  also  to  indicate  the 
days  of  the  month.  These  clocks  are  to  be  fur¬ 
nished  and  put  up  on  proper  hard-wood  tablets 
fastened  to  the  wall  at  such  places  as  the  Water 
Company  may  select. 


SULPHATE  OF  ALUMINA  SOLUTION  TANKS. 

101.  These  tanks  shall  be  four  in  number,  rest 
upon  and  be  formed  in  the  top  of  the  50-foot  diam¬ 
eter  stand-pipe  described  in  paragraphs  72,  81,  82, 
and  83  of  these  specifications,  for  which  pupose  the 
upper  six  rings  will  be  used,  five  feet  in  height 
each,  excluding  lap. 


—  60 


102.  From  the  lower  section,  above  the  angle 
bar  at  its  top,  as  described  in  paragraph  82  of  these 
specifications,  the  upper  section  is  to  be  added  to  a 
height  of  30  feet,  nine  feet  of  which  height  is  to  be 
utilized  for  erecting  ten  radial  trusses  internally 
across  the  50-foot  pipe  for  the  purpose  of  support¬ 
ing  the  floor  and  contents  of  the  upper  section. 
The  plates  forming  the  bottom  of  the  upper  section 
are  to  be  connected  with  the  sides  thereof  by  having 
upward  flanges  riveted  to  the  exterior  shell  of  said 
upper  section  at  a  height  of  nine  feet  above  its 
bottom,  at  which  height  the  floor  is  to  be  supported 
on  the  ten  radial  trusses  before  named.  The  upper 
section  is  to  be  divided  into  four  compartments  of 
equal  volumes  by  the  introduction  of  three  smaller 
stand-pipes  inside  of  the  larger,  riveted  to  the  flat 
bottom  of  the  upper  section  of  the  pipe,  and  stayed 
radially  to  each  other  and  to  the  outer  shell  of  the 
upper  section.  The  four  cylindrical,  concentric 
tanks  thus  formed  will  be  25,  35-35,  43-3,  and  50 
feet  in  diameter,  respectively.  The  one  in  the  cen¬ 
ter  will  be  a  vertical  cylinder  25  feet  in  diameter, 
and  the  other  three  will  surround  it  in  the  form  of 


—  61- 


annuli,  be  equal  to  each  other  and  the  central  tank 
in  volumetrical  capacity.  In  these  four  tanks,  in 
two  at  a  time,  the  sulphate  of  alumina  solution  is 
to  be  prepared,  and,  when  ready  and  needed,  to  be 
drawn  therefrom  through  pipes  by  gravity  into  the 
receiving  and  regulating  tank  connected  with  the 
pumps  described  in  paragraph  106  of  these  specifi¬ 
cations.  Near  the  upper  ends,  surrounding  the  out¬ 
side  of  tank  No.  2  and  enclosed  in  tank  No.  4, 
there  are  to  be  trays  for  holding  the  undissolved 
sulphate  of  alumina,  which  trays  shall  be  each  a 
quarter-circle  in  section  of  24-inch  radius,  in  which 
the  sulphate  of  alumina  to  be  dissolved  is  to  be 
placed,  and  through  which  the  water  for  solution  is 
to  be  passed  by  the  circulating  pumps  in  the  process 
of  solution.  After  this  upper  section  of  the  stand¬ 
pipe  (the  four  sulphate  of  alumina  solution  tanks) 
has  been  completed,  it  is  to  be  thoroughly  cleaned, 
dried  with  a  hot  air  blast,  and  is  to  receive  three 
coats  of  asphaltum  paint  such  as  the  Water  Com¬ 
pany  may  select;  or,  if  preferred  by  said  company, 
this  upper  section,  like  the  lower,  shall  be  coated 
with  Portland  cement  mortar  three-quarters  of  an 


-62- 


inch  thick.  For  the  purpose  of  ventilating  and 
lighting,  and  affording  in  and  egress  thereto  and 
from,  there  shall  be  two  circular  openings,  six  feet 
in  diameter  in  the  clear,  cut  through  the  north  and 
south  sides  of  the  upper  stand-pipe,  diametrically 
opposite  to  each  other.  The  steel  plates,  where  these 
holes  are  to  be  cut,  are  to  be  three-quarters  of  an 
inch  thick,  and  reinforced  on  the  inside  by  riveting 
around  the  margins  of  the  circular  holes,  crownless 
hats,  made  out  of  6-inch  x  6-inch  x  ^ -inch  steel 
angle-bars,  riveted  with  %-inch  rivets  staggered 
with  a  pitch  2^/2  inches.  The  crownless  hats  shall 
be  made  by  welding  the  angle-bars  and  shaping  the 
hats  so  as  to  fit  the  interior  circumference  of  the 
stand-pipe.  The  center  of  these  six-foot  openings 
shall  be  four  feet  above  the  top  of  the  lower  section 
of  the  stand-pipe. 


SULPHATE  OF  ALUMINA  FEED-TANK. 

103.  In  the  northwestwardly  corner  of  the  coag- 
ulating-house  there  shall  be  placed  a  steel -plate 
sulphate  of  alumina  feed  tank,  10  feet  in  diameter 


—  63  — 


and  5  feet  in  height,  into  which  the  solution  is  to 
be  delivered  from  the  solution-tanks,  and  from  which 
it  is  to  be  drawn  by  the  bronze  or  aluminum  acid- 
proof  feed  pump  for  delivery  to  the  settled  inflow¬ 
ing  water  to  be  coagulated  in  the  stand-pipe.  This 
tank  is  to  be  supported  at  such  an  elevation  as  to 
provide  a  satisfactory  feed-head  to  the  above  named 
pump.  Internally,  the  sides  and  bottom  of  this  tank 
are  to  be  lined  with  Portland  cement  mortar  to  the 
thickness  of  three-quarters  of  an  inch,  the  same  as 
provided  for  the  stand-pipe  in  paragraph  90. 


PIPES  IN  COAGULATING-HOUSE. 

104.  The  coagulating-house  is  to  be  fitted  with 
one  line  of  wrought  iron,  screw -jointed,  lead -lined 
pipe,  seven  or  eight  inches  in  diameter,  starting  from 
a  gate -valve  near  the  curbstone  in  the  sidewalk  on 
Frankfort  Avenue,  on  the  north  side  of  the  coagulat¬ 
ing-house;  extend  thence  across  the  sidewalk, 
through  the  walls  of  the  house,  and  vertically  in  the 
northeast  corner  of  said  house  to  a  level  with  the  bot¬ 
tom  of  the  sulphate  of  alumina  solution-tanks;  thence 


—  64  — 


horizontally  southwardly  along  the  easterly  wall  of 
the  house  to  the  middle  on  the  easterly  side  of  the 
stand-pipe;  thence  at  right  angles  westwardly  to  con¬ 
nect  with  the  bottom  of  the  four  compartments 
forming  the  sulphate  of  alumina  solution- tanks  in 
the  upper  section  of  the  stand-pipe,  and  connect  by 
means  of  three  7-inch  x  7-inch  x  7-inch  tees,  one 
7  or  8-inch  ell,  six  7  or  8-inch  nipples,  and  three  7 
or  8 -inch  gate -valves,  all  as  illustrated  upon  the 
drawings,  and  for  the  purpose  of  supplying  filtered 
water  severally  to  the  two  pairs  of  sulphate  of 
alumina  solution-tanks. 

105.  On  the  west  side  there  shall  be  a  similar 
lead-lined  7  or  8-inch  pipe  connection  with  the  bottom 
of  the  several  solution -tanks  by  nipples,  gate-valves, 
ell,  tees,  and  extend  westwardly  to  the  westerly  wall 
of  the  coagulating-house ;  thence  horizontally  north¬ 
wardly  along  said  wall  to  connect  with  the  sulphate 
of  alumina  feed-tank  by  means  of  proper  fittings 
and  a  ball  float-valve  to  regulate  the  level  in  said 
tank,  which  last  line  of  pipe,  with  its  valves  and 
fittings,  is  for  the  purpose  of  withdrawing  the  sul¬ 
phate  of  alumina  solution  from  the  solution  -  tanks 


—  65  — 


and  delivering  it  to,  and  regulating  in,  the  sulphate 
of  alumina  feed-tank,  the  supply  to  the  regulating 
pump  heretofore  described  and  provided  for.  There 
shall  be  two  pairs  8-inch  rotary  pumps  (four  in  all) 
to  each  pair  of  sulphate  of  alumina  solution  tanks, 
for  circulating  purposes.  They  are  to  be  operated 
by  electric  motors. 

106.  One  line  of  6 -inch  drain  and  waste  pipe, 
extending  from  upper  floor  in  coagulating  -  house, 
and  to  have  such  fittings  and  connections  with 
valves  as  will  enable  all  the  waste  fluids  from  the 
several  floors  to  be  carried  down  and  discharged  into 
the  20-inch  stoneware  drain -pipe. 


PUMPS. 

107.  There  shall  be  two  bronze  or  aluminum, 
acid-proof,  double-acting  plunger,  internally-packed, 
sulphate  of  alumina  solution  pumps,  each  i8j4 
inches  in  diameter,  and  of  a  stroke  varying  from  1 
inch  to  32  inches.  These  pumps  are  to  be  furnished 
in  duplicate,  so  that  they  may  be  used  interchange¬ 
ably  and  subjected  to  such  repairs  as  will  maintain 

5 


66  — 


constantly  the  requisite  delivery  efficiency  to  prop¬ 
erly  regulate  the  rate  of  sulphate  of  alumina  appli¬ 
cation  to  the  settled  water  before  entering  the 
filters.  The  pumps,  one  at  a  time,  will  be  located 
inside  the  standpipe  near  its  top,  and  will  be 
actuated  by  a  disc-crank  on  the  upper  end  of  the 
vertical  shaft  of  the  combined  meter  and  motor 
described  in  paragraphs  75,  84,  86,  and  87.  The 
disc-crank  is  to  be  so  constructed  as  to  operate  a 
revolution  counter  which  shall  be  so  geared  as  to 
register  gallons  of  water  passed  by  the  meter- 
motor. 


ELEVATOR. 

108.  There  is  to  be  one  electric  elevator  in  the 
southeast  corner  of  the  coagulating-house,  capacity 
3,000  pounds,  lift  75  feet.  The  construction  of  this 
elevator  shall  include  everything  needed  for  com¬ 
pleting  it  ready  for  service,  comprising  cage,  safety 
appliance,  wire  net  surrounded  well,  with  sliding 
doors  at  top,  bottom,  and  on  two  intermediate 
floors;  it  shall  be  of  the  most  approved  design  and 


—  67- 


construction  in  all  its  parts.  The  electric  energy 
for  operating  it  will  be  furnished  by  the  Water 
Company,  properly  wired  to  the  inside  of  the  coag- 
ulating-house. 


ELECTRIC  MOTORS. 

109.  The  electric  motors  required  for  the  various 
purposes  named  in  the  specifications,  such  as  are 
needed  for  the  traveling-crane,  agitator,  electric 
elevator,  circulating  pumps,  etc.,  are  to  be  furnished 
in  connection  with  those  details  as  parts  thereof, 
and  be  embraced  in  the  contract  therefor.  In  addi¬ 
tion  to  these  there  shall  be  manufactured,  furnished, 
delivered,  and  put  up  at  and  in  the  filter-house  the 
following  electric  motors  for  operating  the  gate- 
valves  which  control  the  flow  of  water  to  and  from 
the  filters,  which  are  to  be  furnished  under  a  sepa¬ 
rate  contract: 

28  one-horse  power  motors  for  operating  20-inch 
gate  valves  inside  of  filter-house. 

2  two-horse  power  motors  for  operating  30-inch 
gate-valves  outside  of  filter-house. 


—  68 


2  three -horse  power  motors  for  operating  36- 
inch  gate-valves  outside  of  filter-house. 

4  three -horse  power  motors  for  operating  36- 
inch  gate-valves  inside  of  filter-house. 

2  four-horse  power  motors  for  operating  48-inch 
gate-valves  outside  of  filter-house. 

Those  on  the  outside  of  the  house  shall  be 
placed  in  concrete  vaults,  built  underground  by  and 
at  the  expense  of  the  Water  Company. 

Electric  energy  for  all  these,  including  wire 
cables  to  the  motors,  will  be  furnished  from  the 
main  power  station  by  and  at  the  expense  of  the 
Water  Company. 

All  these  motors  must  be  completed,  ready  for 
connection  with  wires  and  service. 


POWER. 

no.  The  power  required  for  the  various  pur¬ 
poses  in  the  filter  and  coagulant-houses  will  be  de¬ 
rived  from  electric  energy,  which  will  be  developed 
at  the  main  power  station  at  the  expense  of  the 
Water  Company,  and  wired  to  the  filter  and  coagu- 


—  69  — 


lant-houses,  to  be  there  used  by  the  various  motors 
required  therein. 


HEATING  OF  BUILDINGS. 

m.  There  shall  be  two  systems  of  heating  ap¬ 
paratuses,  one  for  the  main  filter -house  and  the 
other  for  the  coagulant-house,  which  apparatuses  are 
to  be  separate  and  distinct  from  each  other.  Each 
system  shall  be  capable  of  heating  its  house  to  60 
degrees  Fahrenheit  when  the  thermometer  reads  io 
degtees  Fahrenheit  below  zero  in  the  open  air. 

1 1 2.  Systems  of  steam  and  electric  heating  de¬ 
vices  will  be  considered.  If  a  steam  system  is 
adopted,  the  main  steam  pipe  will  be  brought,  by 
and  at  the  expense  of  the  Water  Company,  to  the 
filter -house,  inside  the  west  wall,  approximately  in 
the  center  thereof,  and  to  the  inside  of  the  south 
wall  of  the  coagulant -house,  approximately  in  the 
center  thereof;  if  an  electric  system  is  adopted,  the 
main  wires  thereof  will  enter  and  terminate  inside 
of  the  houses  at  points  similar  to  those  of  the  steam 


pipes. 


-70- 


LIGHTING. 

1 13.  The  light  for  the  coagulant  and  filter-houses 
shall  be  obtained  from  the  use  of  both  arc  and  in¬ 
candescent  lamps,  of  such  number  and  candle-power 
as  may  be  deemed  necessary.  The  arc  lights  shall 
be  used  for  general  lighting  sufficient  in  degree  to 
conveniently  and  successfully .  perform  all  ordinary 
running  operations  and  manipulations,  while  the  in¬ 
candescent  lamps  shall  be  used  at  such  places  and 
in  such  numbers  where  desired  and  needed,  and 
where  close  reading  or  inspection  has  to  be  made 
and  clerical  work  performed.  The  electric  energy 
for  lighting  purposes  will  be  developed  at  the  main 
power  station,  and  wired  to  and  through  the  outside 
walls  of  the  coagulant  and  filter-houses,  about  mid¬ 
way  of  their  westerly  and  southerly  walls,  respect¬ 
ively,  by  and  at  the  expense  of  the  Louisville  Water 
Company. 


—  71  — 


GENERAL  PROVISIONS. 

1 14.  In  the  construction  of  the  different  parts  of 
the  work  hereinbefore  specified  and  described,  the 
several  contractors,  in  their  modes  of  operation,  in 
their  order  of  proceeding,  and  in  their  selection  and 
use  of  appliances  and  devices  for  erecting  their 
parts,  have  liberty  of  choice  only  so  far  as  is  con¬ 
sistent  with  the  success  of  all  the  parts  embraced 
by  the  .different  contracts,  as  well  as  the  whole.  No 
mode  of  operation  or  procedure  which  tends  to  im¬ 
pair  the  usefulness  or  make  unsuccessful  any  part, 
will  be  permitted  to  be  adopted  and  used  by  any  of 
the  contractors.  The  success  of  no  part  will  be 
allowed  to  hinge  upon  the  impairment  or  failure  of 
another;  the  success  of  the  work  in  its  entirety  is 
what  is  to  be  accomplished. 

1 15.  Any  modification  of  these  plans  and  speci¬ 
fications  which  bidders  may  desire  to  make  must  not 
be  made  by  interlineations  of  the  specifications  or 
the  proposals,  for  this  will  make  such  proposals  in¬ 
formal  and  cause  their  rejection.  All  proposals 


72  — 


must  be  formal;  and  if  bidders  desire  to  propose 
differently,  they  must  do  so  by  separate  written 
communications  enclosed  in  the  same  envelope  with 
the  formal  proposal.  In  this  form,  suggestions  or 
proposals  outside  of  the  specifications  will  receive 
such  consideration  as  they  may  be  entitled  to  con¬ 
sistently  with  the  Water  Company’s  interest. 

116.  Throughout  the  foregoing  specifications, 
wherever  it  is  provided  that  parts  are  to  be  fur¬ 
nished  and  erected  by  one  contractor  in  conjunction 
with  other  parts  to  be  furnished  and  erected  by 
other  contractors,  and  thus  involve  two  or  more  con¬ 
tracts,  the  parties  having  such  divers  contracts  shall, 
when  it  is  necessary  to  the  success  of  the  work,  co¬ 
operate,  work  jointly,  so  that  each  may  be  assisted 
by  the  other  and  not  obstructed.  This  clause  is 
binding  upon  all  contractors  who  may  furnish  ma¬ 
terials —  parts  of  the  filter  system  —  and  erect  and 
connect  them  at  the  proper  time  in  their  correct 
relations  and  positions  with  reference  to  the  whole, 
at  the  same  time  that  other  contractors  may  be 
similarly  occupied.  No  contractor  is  to  have  prece¬ 
dence  in  availing  of  erection  space  or  facilities  over 


—  73  — 


another  contractor  any  farther  than  the  natural 
order  in  which  one  part  of  the  system  precedes 
another.  The  conflict  of  interests  which  must  at 
times  arise  in  constructions  of  this  magnitude  and 
complexity  must  be  borne  and  adjusted  in  a  spirit 
of  compromise  and  friendliness,  and  in  all  such  con¬ 
flicts  the  Water  Company’s  decision  shall  be  final 
and  binding  upon  all  parties. 

1 17.  Throughout  the  foregoing  specifications, 
more  especially  in  the  descriptive  parts  thereof,  the 
work  described  is  referred  to  as  a  whole,  comprising 
six  filter-tanks,  which  reference  is  correct  only  so 
far  as  it  relates  to  the  unfiltered  water  supply  pipes 
being  connected  with  the  mains  on  the  outside  of 
the  filter-house,  brought  into  said  house  and  termi¬ 
nated  on  the  floor  thereof,  to  the  coagulating  de¬ 
partment,  and  the  traveling-crane  and  agitator ;  that 
is  to  say,  the  underground  pipes  outside  of,  and 
through  the  walls  into,  the  filter-house,  the  coagu¬ 
lating  department,  and  the  traveling-crane  and  agi¬ 
tator,  are  designed,  and  are  to  be  built  now,  of 
sufficient  capacity  to  operate  six  filter-tanks,  but 
only  three  tanks,  with  their  needful  appurtenances, 


-74- 


are  to  be  built  and  put  in  operation  at  the  present 
time. 

118.  For  the  purpose  of  having  the  several  parts 
of  the  described  filtration  system  constructed  and 
executed  upon  the  most  advantageous  terms,  the 
work  has  been  subdivided  under  twenty-four  differ¬ 
ent  heads,  as  enumerated  below;  in  the  building, 
erecting,  and  completing  of  which,  the  several  con¬ 
tractors  shall  employ  skilled  artisans  and  workmen 
and  have  the  work  done  in  the  best  workmanlike 
manner. 


SUBDIVISIONS  OF  CONTRACT. 

119- 

Proposal  I — For  pipes,  specials  and  gate -valves,  out¬ 
side  of  and  under  filter-house. 

II —  “  ways  in  filter -house  to  support  an 
electric  crane. 

“  III—  “  three  filter-tanks. 

“  IV —  “  20-inch,  30-inch,  and  36-inch  pipes, 

specials  and  gate-valves  connect¬ 
ed  with  three  filter-tanks. 


-75- 

Proposal  V — For  gate-valves. 


u 

VI—  “ 

six  balanced  20- inch.  piston 

valves. 

u 

VII—  “ 

six  floating-weirs. 

u 

VIII—  “ 

sand  layer  support  and  strainer 

system  for  three  filter-tanks. 

u 

IX—  “ 

electric  traveling-crane. 

u 

X—  “ 

agitator. 

u 

XI—  “ 

electric  motors. 

a 

XII—  “ 

gauges  and  tablets. 

a 

XIII—  “ 

filter  sand. 

a 

XIV—  “ 

one  stand-pipe  and  four  sulphate 

of  alumina  solution  tanks. 

a 

XV—  “ 

meter-motor. 

a 

XVI—  “ 

pumps  and  slotted  disc-crank. 

a 

XVII—  “ 

floating  discharge  tube  in  stand- 

pipe. 

a 

XVIII—  “ 

sulphate  of  alumina  feed  tank. 

a 

XIX—  “ 

pipes,  specials,  and  fittings  in 

coagulant-house. 

a 

XX—  “ 

galleries,  platforms,  floors,  and 

stairs. 

a 

XXI—  “ 

elevator  in  coagulant-house. 

-76- 


Proposal  XXII — For  two  chronometers. 

XXIII —  “  lighting  filter  and  coagulant- 
houses. 

XXIV —  “  heating  systems  in  filter  and 
coagnlant-honses. 

120.  The  foregoing  specifications  and  the  plans 
which  they  describe  were  prepared  in  obedience  to 
a  resolution  passed  as  follows:  At  a  regular  meet¬ 
ing  held  by  the  Board  of  Directors  on  February 
5th,  1900,  it  was  resolved:  “On  account  of  the 
importance  of  the  matter  and  with  a  view  to  the 
company  getting  more  data  and  information,  the 
Chief  Engineer  and  Superintendent  was  authorized 
and  requested  to  prepare  plans,  specifications,  draw¬ 
ings  and  estimates  of  cost,  of  such  a  system  of  fil¬ 
tration  as  he  thinks  will  fully  meet  the  require¬ 
ments  and  the  best  interests  of  the  company  in  the 
premises.” 

CHARLES  HERMANY. 

Chief  Engineer  and  Superintendent. 

Louisville,  Ky.,  November  26th,  1900. 


-77- 


PROPOSAL  I. 


FOR  CAST-IRON  PIPES,  SPECIALS,  AND  GATE-VALVES,  OUT¬ 
SIDE  OF  AND  UNDER  THE  FILTER-HOUSE. 


To  the  Louisville  Water  Company , 

of  Louisville,  Ky. 

Gentlemen  : 

We,  the  undersigned . 

. . as  principal  , 

and . . . 

. u . : . as  snret . , 

being  all  the  parties  directly  or  indirectly  interested 
in  this  bid,  propose  to  the  Louisville  Water  Com¬ 
pany  to  furnish  the  materials  and  perform  the  work 
embraced  and  contemplated  by  paragraphs  5,  6,  9, 
10,  11,  12,  13,  14,  and  15,  and  others,  if  relevant  of 
the  introduction  to  and  the  specifications,  and  repre¬ 
sented  upon  drawings,  sheets  Nos.  1,  iA,  and  9. 

We  further  agree  that  these  parts  shall  be  of  the 


-78- 


best  material  of  their  kinds,  sound  in  all  respects, 
constructed  and  fitted  after  the  most  approved 
methods,  coated  with  the  best  quality  of  coal -pitch 
varnish  applied  in  the  most  approved  method,  trans¬ 
ported  to  the  Water  Purification  Station,  and  there 
erected  and  put  in  place,  all  under  the  supervision 
to  the  satisfaction  and  acceptance  of  the  Louisville 
Water  Company. 

We  will  do  all  work  of  excavating,  cutting  pipe 
lines,  removing  old  or  superfluous  parts,  substituting 
new,  and  complete  the  same  with  the  exception  of 
cutting  holes  through  the  filter-house  wall,  which  is 
to  be  done  by  the  Louisville  Water  Company. 

This  proposal  is  submitted  for  the  work,  com¬ 
plete,  in  accordance  with  the  plans  and  specifica¬ 
tions  combined.  Any  minor  parts  needed  for  com¬ 
pleting  the  work  as  intended  by  drawing  and  speci¬ 
fications,  are  herein  included  and  will  be  furnished, 
whether  or  not  they  are  illustrated  upon  the  draw¬ 
ing  or  enumerated  in  the  specifications. 

The  total  weight  of  cast-iron,  lead,  and  gate- 
valves,  entering  into  the  before  mentioned  work  is 
to  be  not  less  than . pounds  when  completed. 


—  79  — 


We  further  agree  to  furnish  working  drawings, 
the  materials,  and  perform  the  work  bid  upon,  in 
conformity  with  the  plans  and  specifications  submit¬ 
ted  to  us  for  examination;  which  plans  and  speci¬ 
fications  we  hereby  acknowledge  to  be  sufficient, 
which  we  understand,  and  which  we  here  declare 
binding  upon  us  as  a  contract  for  this  portion  of 
the  work,  if  it  be  awarded  to  us.  And  further, 
that  we  will  forthwith  commence  any  and  all  work 
pertaining  thereto,  and  continuously  prosecute  it 
until  completed,  which  shall  be  in  the  time  specified 
for  this  class  of  work,  and  assume  as  independent 
contractors  all  risk  of  accidents  and  claims  for  dam¬ 
ages.  We  will  also  run  the  risk  of  damage  by  trans¬ 
portation,  by  climatic  causes,  or  wind  and  weather, 
by  fire  and  by  labor  strikes,  and  all  other  risks  to 
any  of  the  work  awarded  to  us  (except  the  acts  of 
the  Water  Company),  while  said  work  is  in  pro¬ 
gress,  and  until  completed  and  accepted. 

All  the  foregoing  we  propose  to  furnish,  do, 

and  complete  inside  of. . months  from  award 

of  contract,  for  the  sum  of. . 


—  80 


) 


dollars. 


We  enclose  a  certified  check  in  the  sum  of 


)  dollars,  as  a  guarantee  that  if  this 


work  is  awarded  to  us  we  will  execute  a  contract 
therefor,  with  approved  security,  within  ten  days 
from  the  time  of  awarding  the  contract. 

Our  suret . will  be  the . . . 


which  will  execute  a  bond  in  the  sum  of. 


($ . )  dollars,  guaranteeing  our  perform¬ 

ance  of  this  work  in  accordance  with  the  plans, 
specifications,  terms  of  contract,  and  the  sum 
agreed  upon. 


Very  respectfully, 


-81- 


PROPOSAL  II. 


FOR  WAYS  IN  FILTER-HOUSE  TO  SUPPORT  AN  ELECTRIC 

CRANE. 


To  the  Louisville  Water  Company , 

of  Louisville,  Ky. 

Gentlemen  : 

We,  the  undersigned . 

. . .  as  principal  , 

and . . 

. . . . as  suret . , 

being  all  the  parties  directly  or  indirectly  interested 
in  this  bid,  propose  to  the  Louisville  Water  Com¬ 
pany  to  furnish  the  materials  comprised  in  the  ways 
for  an  electric  crane  described  in  paragraphs  67,  68, 
and  69,  and  others  if  relevant,  of  the  specifications, 
and  as  represented  on  drawing,  sheet  No.  22. 

The  ways  shall  be  built  of  steel  girders  of  the 

form  and  dimensions,  thickness  of  metal  and  size  of 

6 


-82- 


members,  all  as  illustrated  upon  drawing,  sheet  No. 
22.  They  shall  be  of  mild  steel,  ultimate  strength 
60,000  to  70,000  pounds  per  square  inch ;  elastic 
limit,  not  less  than  one-half  the  ultimate  strength; 
elongation,  20  per  cent,  in  eight  inches;  minimum 
reduction  at  area  of  fracture,  40  per  cent.  It  shall 
bend  cold  180  degrees  to  a  diameter  equal  to  the 
thickness  of  the  piece  tested,  without  crack  or  flaw 
on  the  outside  of  the  bent  portion.  The  cast  iron 
shall  be  tough  gray  metal  of  the  best  quality.  A 
cast  bar,  5  feet  long,  1  inch  square,  from  which  the 
skin  has  been  removed,  resting  on  supports  4  feet 
6  inches  apart,  shall  bear,  without  breaking,  a  weight 
of  500  pounds  suspended  at  the  center,  with  a  de¬ 
flection  of  not  less  than  inches.  The  bolts  and 
nuts  shall  be  made  of  the  best  quality  of  rolled 
coke-made  iron,  such  as  used  in  bridge  construction. 

The  ways  shall  be  put  up  on  the  inside  of  the 
filter-house,  along  the  easterly  and  westerly  sides  of 
the  longitudinal  walls,  at  a  height  of  about  18  feet 
above  the  floor,  resting  and  bolted  upon  cast  iron 
plates  resting  on  top  of  the  pilasters  along  said 
walls  of  the  house.  The  girders  shall  be  spliced  in 


—  83  — 


the  middle  of  each  cast  iron  cap,  as  illustrated  upon 
the  drawing,  at  which  splice  they  are  to  be  bolted 
by  four  one-inch  bolts  to  each  cap. 

The  rivet  holes  shall  be  drilled  or  punched  and 

reamed;  rivets,  of  the  best . ’s  steel  rivets, 

driven  carefully  and  solidly  without  the  use  of 
drifts.  Rivets  shall  be  cone,  button,  steeple,  or 
countersunk,  as  the  Water  Company  may  elect. 

The  girders  shall  be  placed,  completely  finished, 
upon  the  pilasters  in  the  walls  of  the  house,  ready 
to  receive  the  tracks  of  the  traveling  -  crane.  The 
steel  plates,  angles,  etc.,  shall  be  delivered  and  put 
up  free  from  rust,  and  thereafter  receive  a  thick 
coat  of  raw  linseed  oil  to  protect  them  against  rust¬ 
ing  until  finally  painted,  which  is  not  a  part  of  this 
contract. 

The  total  weight  of  steel,  cast  iron  and  wrought 
iron,  shall  be  not  less  than . pounds. 

This  proposal  is  submitted  for  the  work,  com¬ 
plete,  in  accordance  with  the  plans  and  specifications 
combined.  Any  minor  parts  needed  for  completing 
the  work  as  intended  by  the  drawings  and  specifica¬ 
tions,  are  herein  included  and  will  be  furnished, 


—  84  — 


whether  or  not  they  are  illustrated  upon  the  draw¬ 
ing  or  enumerated  in  the  specifications. 

We  further  agree  to  furnish  working  drawings, 
the  material,  and  perform  the  work  bid  upon,  in 
conformity  with  the  plans  and  specifications  submit¬ 
ted  to  ns  for  examination;  which  plans  and  speci¬ 
fications  we  hereby  acknowledge  to  be  sufficient, 
which  we  understand,  and  which  we  here  declare 
binding  upon  us  as  a  contract  for  this  portion  of 
the  work,  if  it  be  awarded  to  us.  And  further, 
that  we  will  forthwith  commence  any  and  all  work 
pertaining  thereto,  and  continuously  prosecute  i  t 
until  completed,  which  shall  be  in  the  time  speci¬ 
fied  for  this  class  of  work,  and  assume  as  independ¬ 
ent  contractors  all  risk  of  accidents  and  claims  for 
damages.  We  will  also  run  the  risk  of  damage  by 
transportation,  by  climatic  causes,  or  wind  and 
water,  by  fire  and  by  labor  strikes,  and  all  other 
risks,  to  any  of  the  work  awarded  to  us  (except  the 
acts  of  the  Water  Company),  while  said  work  is  in 
progress,  and  until  completed  and  accepted. 

All  the  foregoing  we  propose  to  furnish,  do,  and 
complete  inside  of  months  from  award  of 


—  85 


contract,  for  the  sum  of . 

. . . ($ . )  dollars. 

We  enclose  a  certified  check  in  the  sum  of 

. - . (# . ) 

dollars,  as  a  guarantee  that  if  the  work  is  awarded 
to  ns  we  will  execute  a  contract  therefor,  with  ap¬ 
proved  security,  within  ten  days  from  the  time  of 
awarding  the  contract. 

Our  snret . will  be  the . * . 


which  will  execute  a  bond  in  the  sum  of . i . 

. ($ . )  dollars, 

guaranteeing  our  performance  of  this  work  in  ac¬ 
cordance  with  the  plans,  specifications,  terms  of  con¬ 
tract,  and  the  sum  agreed  upon. 

Very  respectfully, 


-86- 


PROPOSAL  III. 


FOR  THREE  FILTER-TANKS. 


To  the  Louisville  Water  Company , 

of  Louisville ,  Ky. 

Gentlemen  : 

We,  the  undersigned. . 

. as  principal  , 

and . 

. as  suret  , 

being  all  the  parties  directly  or  indirectly  interested 
in  this  bid,  propose  to  the  Louisville  Water  Com¬ 
pany,  to  furnish  the  materials  and  perform  the 
work  embraced  and  contemplated  by  paragraphs  27, 
28,  29,  30,  31,  52,  and  53,  and  others  if  relevant,  of 
the  specifications,  which  work  is  illustrated  on  draw¬ 
ings,  sheets  Nos.  9,  10,  11A,  12A,  and  14. 

The  tanks  shall  be  built  of  the  form  and  dimen¬ 
sions,  thickness  of  metal,  and  size  of  members,  all 


—  87  — 


as  illustrated  upon  the  drawings.  They  shall  be  of 
mild  steel,  ultimate  strength  60,000  to  70,000 
pounds  per  square  inch;  elastic  limit,  not  less  than 
one-half  the  ultimate  strength;  elongation,  20  per 
cent,  in  eight  inches;  minimum  reduction  at  area  of 
fracture,  40  per  cent.  It  shall  bend  cold  180  de¬ 
grees  to  a  diameter  equal  to  the  thickness  of  the 
piece  tested,  without  crack  or  flaw  on  the  outside 
of  the  bent  portion. 

The  work  embraced  in  this  contract  comprises 
all  that  which  is  to  be  made  of  steel  in  and  con¬ 
nected  with  the  tanks,  and,  in  addition  thereto,  the 
punching  of  holes  for  the  wires  of  the  sand  layer 
support,  the  furnishing  of  the  man-hole  covers,  gas¬ 
kets,  bridges,  bolts,  and  nuts,  the  cutting  of  the  man 
and  20-inch  pipe  holes,  and  everything  ready  for  at¬ 
taching  the  water  pipes,  regulators,  steps,  platforms, 
and  introducing  the  strainer  system. 

The  rivets  shall  be  of  ,’s  best,  and 

of  steel,  the  holes  in  the  plates  punched  and  reamed 
to  fit  or  match  exactly,  riveted  without  the  use  of 
drifting,  thoroughly  caulked  and  made  water-tight. 


-88- 


Rivets  shall  be  cone,  button,  steeple,  or  countersunk, 
as  the  Water  Company  may  elect. 

The  tanks  shall  be  built  to  a  height  of  about 
three  feet,  temporarily  supported  upon  blocking  at 
a  convenient  height  above  the  floor  of  the  house 
and  thoroughly  caulked,  after  which  the  tanks  are 
to  be  suspended  from  the  traveling-crane,  the  blocks 
removed,  a  one-inch  bed  of  Portland  cement  mortar 
spread  upon  the  floor,  the  tanks  lowered  into  it, 
mauled  into  a  level  position  and  evenly  bedded  in 
the  cement  mortar;  thereafter,  the  remainder  of  the 
tank  is  to  be  built  to  the  form  and  dimensions 
given. 

The  plate-steel  of  the  bottoms,  sides,  and  ends, 
as  well  as  the  ducts  of  the  tanks,  shall  be  made 
true  by  planishing  them,  so  as  to  take  out  all  dents 
and  inequalities  in  their  surfaces,  and  thereby  built 
suitably  to  form  them  into  strictly  geometrical 
forms. 

The  lips  of  the  weirs  in  the  sides  of  the  tanks 
shall  be  made  square  and  level  throughout  by  the 
use  of  such  tools  as  will  accomplish  the  result. 
The  sides  of  the  easterly  and  westerly  tanks  shall 


—  89  — 


each  be  reinforced  by  five  1 8-inch  I-beams,  riveted  to 
their  sides,  resting  firmly  upon  the  floor  of  the 
house,  and  abutting  and  be  riveted  by  means  of 
angles  to  the  bottom  of  the  ducts.  Both  sides  of 
the  middle,  the  westerly  side  of  the  easterly  tank 
and  the  easterly  side  of  the  westerly  tank,  shall  be 
stayed  to  each  other  at  intervals  corresponding  with 
the  1 8-inch  I-beams  placed  on  the  outside  of  the 
easterly  and  westerly  tanks. 

There  shall  be  riveted  to  the  four  corners  of 
each  tank,  steel  horns,  inches  in  diameter, 

projecting  7  inches  above  the  top  of  the  tanks, 
to  be  used  for  engaging  perforated  lugs  on  the 

agitator  grille,  so  as  to  locate  correctly  and  maintain 
firmly  in  position  the  said  grille  when  the  agitators 
are  in  working  position  in  the  tanks,  and  to  firmly 

retain  them  in  such  position  while  agitating  the 

sand  layer. 

In  the  interior  and  about  three  feet  above  the 
bottom  of  each  tank  are  to  be  placed  a  tier  of  I- 
beams,  supported  on  I-beam  struts  on  the  floor  of 
the  tank  and  riveted  to  said  sides,  to  the  struts,  and 


—  90  — 


the  struts  to  the  bottom  of  the  tank  by  knees,  all 
as  illustrated  upon  the  drawings. 

The  steel  plate  and  other  forms  to  be  used  in 
these  tanks  shall  not  be  allowed  to  become  rusty 
before  delivery,  to  effect  which  purpose  it  shall  be 
coated  with  linseed  oil  before  removal  from  the 
steel  mills. 

After  the  work  shall  have  been  completed,  the 
tanks,  in  all  their  parts,  embracing  all  their  mem¬ 
bers,  shall  be  thoroughly  cleaned,  made  perfectly 
dry  by  the  application  of  a  hot  air  blast,  and  after¬ 
wards  receive  three  coats  of  asphalt  or  other  paint, 
as  the  Water  Company  may  select. 

The  total  weight  of  steel,  cast-iron,  and  wrought- 
iron,  shall  be  not  less  than  pounds  when 

completed. 

This  proposal  is  submitted  for  the  work,  com¬ 
plete,  in  accordance  with  the  plans  and  specifica¬ 
tions  combined.  Any  minor  parts  needed  for  com¬ 
pleting  the  work  as  intended  by  drawings  and  spec¬ 
ifications,  are  herein  included  and  will  be  furnished, 
whether  or  not  they  are  illustrated  upon  the  draw¬ 
ings  or  enumerated  in  the  specifications. 


—  91 


We  further  agree  to  furnish  working  drawings, 
the  material,  and  perform  the  work  bid  upon,  in 
conformity  with  the  plans  and  specifications  submit¬ 
ted  to  us  for  examination ;  which  plans  and  speci¬ 
fications  we  hereby  acknowledge  to  be  sufficient, 
which  we  understand,  and  which  we  declare  binding 
upon  us  as  a  contract  for  this  portion  of  the  work, 
if  it  be  awarded  to  us.  And  further,  that  we  will 
forthwith  commence  any  and  all  work  pertaining 
thereto,  and  continuously  prosecute  it  until  com¬ 
pleted,  which  shall  be  in  the  time  specified  for  this 
class  of  work,  and  assume  as  independent  contrac¬ 
tors  all  risk  of  accidents  and  claims  for  damages. 
We  will  also  run  the  risk  of  damage  by  transpor¬ 
tation,  by  climatic  causes,  or  wind  and  weather, 
by  fire  and  by  labor  strikes,  and  all  other  risks 
to  any  of  the  work  awarded  to  us  (except  the 
acts  of  the  Water  Company),  while  said  work  is 
in  progress  and  until  completed  and  accepted. 

All  the  foregoing  we  propose  to  furnish,  do, 

and  complete  inside  of . months  from 

award  of  contract,  for  the  sum  of 


) 


dollars. 

We  enclose  a  certified  check  in  the  sum  of 


($ . )  dollars,  as  a  guarantee  that  if  the 

work  is  awarded  to  us  we  will  execute  a  contract 
therefor,  with  approved  security,  within  ten  days 
from  the  time  of  awarding  the  contract. 

Our  snret . will  be  the . . . l. . 


which  will  execute  a  bond  in  the  sum  of 

. . . . (# . ) 

dollars,  guaranteeing  our  performance  of  this  work 
in  accordance  with  the  plans,  specifications,  terms 
of  contract,  and  the  sum  agreed  upon. 

Very  respectfully, 


-93- 


PROPOSAL  IV. 


FOR  20-INCH,  30-INCH,  AND  36-INCH  CAST-IRON  PIPES, 
SPECIALS,  AND  GATE -VALVES  CONNECTED 
WITH  THREE  FILTER-TANKS. 


To  the  Louisville  Water  Company , 

of  Louisville,  Ky. 

Gentlemen  : 

We,  the  undersigned . 

. ; . as  principal  , 

and . 

. as  snret . , 

being  all  the  parties  directly  or  indirectly  interested 
in  this  bid,  propose  to  the  Louisville  Water  Com¬ 
pany  to  furnish  the  pipes  and  specials  for  three 
filters,  transport  them  to  the  filter-house,  place  them 
in  position,  and  joint  them  to  each  other,  to  the 
tanks  and  the  gate-valves,  all  as  illustrated  upon  the 
drawings,  sheets  Nos.  9,  10,  and  12 A,  and  described 
in  paragraphs  33,  34,  35,  36,  37,  38,  39,  40,  and  41, 
and  others  if  relevant,  of  the  specifications. 


—  94  — 


We  further  agree  that  all  these  pipes  and  spe¬ 
cials  shall  be  of  the  best  pipe  metal,  true  and  sound 
castings,  cast  by  the  most  approved  methods  and 
coated  with  coal -pitch  varnish,  all  under  the  super¬ 
vision,  inspection,  test,  and  to  the  satisfaction  and 
acceptance  of  the  Louisville  Water  Company. 

The  hydrostatic  test  to  which  these  pipes  and 
specials  are  to  be  subjected,  at  the  expense  of  the 
contractor,  shall  be  the  ordinary  one  of  300  pounds 
to  the  square  inch. 

We  will  furnish  all  the  lead,  of  quality  and 
weight  acceptable  to  the  Louisville  Water  Company, 
for  making  the  joints,  make  the  joints  water-tight, 
and  to  the  satisfaction  and  acceptance  of  said  com¬ 
pany.  Where  there  are  flanged  and  bolted  joints, 
we  will  make  these  joints  water-tight  and  satisfac¬ 
torily,  using  canvas-laid  rubber  gaskets  made  in  one 
piece  for  each  joint.  Where  the  pipes  are  united 
by  the  ordinary  socket  and  spigot  joint  packed  with 
lead,  we  will  make  the  lead  packing  in  the  annular 
space  between  the  spigots  and  sockets  by  filling  said 
spaces  solidly  with  lead  from  the  socket  faces  to  a 
depth  of  not  less  than  two  inches  all  around,  and 


-95- 


use  such  fibre  packing  for  preventing  the  molten 
lead  from  running  inside  of  the  pipes  as  may  after¬ 
wards  be  removed  from  the  sockets  inside  of  the 
pipes,  so  as  to  leave  no  fibrous  material  in  the  pipes 
which  may  in  time  decay,  escape  from  the  pipe 
sockets,  and  lodge  in  the  strainer  system  of  the 
filters. 

The  pipes  shall  all  be  supported  in  the  filter- 
tanks  and  upon  the  floor  of  the  filter-house  on  cast- 
iron  saddles,  as  illustrated  upon  the  drawings. 

After  the  work  shall  have  been  completed,  the 
pipe,  specials,  and  gate -valves  shall  be  thoroughly 
cleansed,  made  perfectly  dry  by  the  application  of  a 
hot-air  blast,  and  afterwards  receive  a  coat  of  paint, 
such  as  the  Water  Company  may  select. 

The  estimated  weight  of  all  these  pipes,  includ¬ 
ing  lead,  exclusive  of  stop -gates,  but  embracing  all 
20 -inch,  30 -inch,  and  36 -inch  pipes,  with  their  con¬ 
nected  specials,  shall  be  not  less  than . tons 

of  2,000  pounds  each. 

This  proposal  is  submitted  for  the  work,  com¬ 
plete,  in  accordance  with  the  plans  and  specifications 
combined.  Any  minor  parts  needed  for  completing 


-96- 


it  as  intended  by  drawings  and  specifications  are 
herein  included  and  will  be  furnished,  whether  or 
not  they  are  illustrated  upon  the  drawings  or  enu¬ 
merated  in  the  specifications. 

We  further  agree  to  furnish  working  plans,  the 
material,  and  perform  the  work  bid  upon,  in  con¬ 
formity  with  the  plans  and  specifications  submitted 
to  us  for  examination;  which  plans  and  specifica¬ 
tions  we  hereby  acknowledge  to  be  sufficient,  which 
we  understand,  and  which  we  here  declare  binding 
upon  us  as  a  contract  for  this  portion  of  the 
work,  if  it  be  awarded  to  us.  And  further,  that 
we  will  forthwith  commence  all  work  pertaining 
thereto,  and  continuously  prosecute  it  until  com¬ 
pleted,  which  shall  be  in  the  time  specified  for  this 
class  of  work,  and  assume  as  independent  contractors 
all  risk  of  accidents  and  claims  for  damages.  We 
will  also  run  the  risk  of  damage  by  transportation, 
by  climatic  causes,  or  wind  and  weather,  by  fire  and 
by  labor  strikes,  and  all  other  risks  to  any  of  the 
work  awarded  to  us  (except  the  acts  of  the  Water 
Company),  while  said  work  is  in  progress  and 
until  completed  and  accepted. 


—  97  — 


All  the  foregoing  we  propose  to  furnish,  do, 

and  complete  inside  of. . months  from  award 

of  contract,  for  the  sum  of,. . 

. . (# . ) 

dollars. 

We  enclose  a  certified  check  in  the  sum  of 


($ . )  dollars,  as  a  guarantee  that  if  this 

work  is  awarded  to  us  we  will  execute  a  contract 
therefor,  with  approved  security,  within  ten  days 
from  the  time  of  awarding  the  contract. 

Our  suret . will  be  the  . 


which  will  execute  a  bond  in  the  sum  of. . 

- . . . . . a - ) 

dollars,  guaranteeing  onr  performance  of  this  work 
in  accordance  with  the  plans,  specifications,  terms  of 
contract,  and  the  sum  agreed  upon. 

Very  respectfully, 


7 


-98- 


PROPOSAL  V. 


FOR  GATE-VALVES. 


To  the  Louisville  Water  Company , 

of  Louisville ,  Ky. 

Gentlemen : 

We,  the  undersigned . 1 . 

. as  principal  , 

and . 

. as  snret . , 

being  all  the  parties  directly  or  indirectly  interested 
in  this  bid,  propose  to  the  Louisville  Water  Com¬ 
pany  to  manufacture,  transport,  and  deliver  f.  o.  b. 
cars  at  Crescent  Hill  Reservoir,  Louisville,  Ky.,  the 
following  gate-valves: 

2  30-inch  gate-valves,  with  socket  and  spigot 
ends  for  ordinary  water-pipe  connections, 
weighing  each  about  6,600  pounds,  to  be 
subjected  to  a  test  pressure  of  300  pounds 
to  the  square  inch. 


—  99  — 


2  36-inch  gate-valves,  with  socket  and  spigot 
ends  for  ordinary  water-pipe  connections, 
weighing  each  about  11,000  pounds,  to  be 
subjected  to  a  test  pressure  of  300  pounds 
to  the  square  inch. 

2  48-inch  gate-valve,  with  sockets  on  each  end 
for  ordinary  water-pipe  connections,  weigh¬ 
ing  about  23,000  pounds,  to  be  subjected 
to  a  test  pressure  of  300  pounds  to  the 
square  inch. 

Also  to  manufacture,  transport,  deliver,  and  con¬ 
nect  with  the  filters  and  pipes  in  the  filter-house  of 
the  Louisville  Water  Company,  the  following  gate- 
valves  : 

24  20-inch  flanged  gate-valves,  weighing  each 
about  2,300  pounds,  to  be  subjected  to  a  test 
pressure  of  200  pounds  per  square  inch. 

4  20-inch  flanged  gate-valves,  weighing  each 
about  2,700  pounds,  to  be  subjected  to  a  test 
pressure  of  300  pounds  per  square  inch. 

4  36-inch  flanged  gate-valves,  weighing  each 
about  10,000  pounds,  to  be  subjected  to  a  test 
pressure  of  200  pounds  per  square  inch. 


—  100  — 


These  gate-valves  shall  be  constructed  in  accord¬ 
ance  with  the  specifications  in  paragraphs  57,  58, 
59,  60,  61,  62,  63,  64,  and  65,  and  others  if  relevant, 
and  placed  as  illustrated  on  drawings,  sheets  Nos. 
iA,  9,  and  10,  under  the  supervision,  inspection, 
test,  and  acceptance  of  the  Louisville  Water  Com¬ 
pany. 

This  proposal  is  submitted  for  the  work,  com¬ 
plete,  in  accordance  with  the  plans  and  specifica¬ 
tions  combined.  Any  minor  parts  needed  for  com¬ 
pleting  it  as  intended  by  drawings  and  specifica¬ 
tions,  are  herein  included  and  will  be  furnished, 
whether  or  not  they  are  illustrated  upon  the  draw¬ 
ings  or  enumerated  in  the  specifications. 

We  further  agree  to  make  working  drawings, 
furnish  the  material  and  perform  the  work  bid 
upon,  in  conformity  with  the  plans  and  specifica¬ 
tions  submitted  to  us  for  examination;  which  plans 
and  specifications  we  hereby  acknowledge  to  be 
sufficient,  which  we  understand,  and  which  we  here 
declare  binding  upon  us  as  a  contract  for  this  por¬ 
tion  of  the  work,  if  it  be  awarded  to  us.  And  fur¬ 
ther,  that  we  will  forthwith  commence  any  and  all 


—  101  — 


work  pertaining  thereto,  and  continuously  prosecute 
it  until  completed,  which  shall  be  in  the  time  speci¬ 
fied  for  this  class  of  work,  and  assume  as  independ¬ 
ent  contractors  all  risk  of  accidents  and  claims  for 
damages.  We  will  also  run  the  risk  of  damage  by 
transportation,  by  climatic  causes,  or  wind  and 
weather,  by  fire  and  by  labor  strikes,  and  all  other 
risks  to  any  of  the  work  awarded  to  us  (except  the 
acts  of  the  Water  Company),  while  said  work  is  in 
progress,  and  until  completed  and  accepted. 

All  the  foregoing  we  propose  to  furnish,  do,  and 

complete  inside  of. . months  from  award  of 

contract,  for  the  following  sums: 

Twenty-four  20-inch  flanged  gate-valves, 
. ($ . )  dollars. 

Four  20-inch  flanged  gate-valves, . 

. .($ . )  dollars. 

Four  36-inch  flanged  gate-valves, . . 

. ($ . )  dollars. 

Two  30-inch  gate-valves,  with  sockets  on  each  end, 
. (# . )  dollars. 

Two  36-inch  gate-valves,  with  sockets  on  each  end, 
. ($ . )  dollars- 


—  102  — 


Two  48-inch  gate-valves,  with  sockets  on  each  end, 
. . ($ . )  dollars. 

The  foregoing  to  he  delivered  f.  o.  b.  cars,  and 
connected  in  place,  respectively,  as  hereinbefore 
stated. 

We  enclose  a  certified  check  in  the  sum  of . 

. : . ($ . )  dollars, 

as  a  guarantee  that  if  this  work  is  awarded  to  us 
we  will  execute  a  contract  therefor,  with  approved 
security,  within  ten  days  from  the  time  of  awarding 
the  contract. 

Our  suret . will  be  the . 


which  will  execute  a  bond  in  the  sum  of . 

. . . ($  )  dollars, 

guaranteeing  our  performance  of  this  work  in  ac¬ 
cordance  with  the  plans,  specifications,  terms  of 
contract,  and  the  sum  agreed  upon. 

Very  respectfully, 


— 103  — 


PROPOSAL  VI. 


FOR  SIX  BALANCED  20-INCH  PISTON-VALVES. 


To  the  Louisville  Water  Company , 

of  Louisville,  Ky. 

Gentlemen  : 

We,  the  undersigned . . . . 

. as  principal  , 

and . 

. as  suret . , 

being  all  the  parties  directly  or  indirectly  interested 
in  this  bid,  propose  to  the  Louisville  Water  Com¬ 
pany  to  manufacture,  deliver,  furnish,  erect,  and  con¬ 
nect  to  the  20 -inch  connecting  pipes  between  the 
ducts  and  the  several  unfiltered  water  supply  pipes, 
six  20 -inch  balanced  piston- valves,  as  described  in 
paragraph  35,  and  others  if  relevant,  of  the  specifica¬ 
tions,  and  illustrated  upon  drawings,  sheets  Nos.  9 
and  19. 


104  — 


Each  valve  is  to  be  connected  with  its  center 
axis,  one  buoy  or  float,  placed  in  a  suitable  vertical 
extension  of  the  valve  case,  which  buoy  or  float  will 
so  regulate  the  flow  of  water  through  the  ports  as 
to  maintain  the  level  thereof  in  the  before -named 
vertical  extension  of  the  case,  as  also  in  the  filter- 
tank  adjacent  thereto,  at  the  proper  height. 

All  wearing  and  bearing  parts  of  the  valves,  in¬ 
cluding  ports,  are  to  be  brass -bushed,  and  covered 
with  the  best  acid-proof  brass  or  bronze. 

The  total  weight  of  the  metal  of  these  valves 
shall  be  not  less  than . pounds. 

This  proposal  is  submitted  for  the  work,  com¬ 
plete,  in  accordance  with  the  plans  and  specifications 
combined.  Any  minor  parts  needed  for  completing 
it  as  intended  by  drawings  and  specifications  are 
herein  included  and  will  be  furnished,  whether  or 
not  they  are  illustrated  upon  the  drawings  or  enu¬ 
merated  in  the  specifications. 

We  further  agree  to  furnish  working  drawings, 
the  material,  and  perform  the  work  bid  upon,  in 
conformity  with  the  plans  and  specifications  submit¬ 
ted  to  us  for  examination;  which  plans  and  speci- 


—  105  — 


fications  we  hereby  acknowledge  to  be  sufficient, 
which  we  understand,  and  which  we  here  declare 
binding  upon  us  as  a  contract  for  this  portion  of 
the  work,  if  it  be  awarded  to  ns.  And  further,  that 
we  will  forthwith  commence  all  work  pertaining 
thereto,  and  continuously  prosecute  it  until  com¬ 
pleted,  which  shall  be  in  the  time  specified  for  this 
class  of  work,  and  assume  as  independent  contrac¬ 
tors  all  risk  of  accidents  and  claims  for  damages. 
We  will  also  run  the  risk  of  damage  by  transporta¬ 
tion,  by  climatic  causes,  or  wind  and  weather,  by  fire 
and  by  labor  strikes,  and  all  other  risks  to  any  of 
the  work  awarded  to  us  (except  the  acts  of  the 
Water  Company),  while  said  work  is  in  progress 
and  until  completed  and  accepted. 

All  the  foregoing  we  propose  to  manufacture, 

deliver,  and  connect,  for  the  sum  of 

. — . — _(# . ) 

dollars,  under  the  supervision,  inspection,  test,  and 

acceptance  of  the  Louisville  Water  Company. 

We  enclose  a  certified  check  in  the  sum  of 

. ($ . ) 

dollars,  as  a  guarantee  that  if  this  work  is  awarded 


—  106 


to  us  we  will  execute  a  contract  therefor,  with  ap¬ 
proved  security,  within  ten  days  from  the  time  of 
awarding  the  contract. 

Our  suret . will  be  the..... . 


which  will  execute  a  bond  in  the  sum  of . 

. . (* . ) 

dollars,  guaranteeing  our  performance  of  this  work 
in  accordance  with  the  plans,  specifications,  terms  of 
contract,  and  the  sum  agreed  upon. 

Very  respectfully, 


—  107  — 


PROPOSAL  VII. 


FOR  SIX  FLOATING  WEIRS. 


To  the  Louisville  Water  Company , 

of  Louisville ,  Ky. 

Gentlemen  : 

We,  the  undersigned . 

. . . as  principal  , 

and . 

. as  snret . , 

being  all  the  parties  directly  or  indirectly  interested 
in  this  bid,  propose  to  the  Louisville  Water  Com¬ 
pany  to  manufacture,  furnish,  deliver,  erect,  and 
connect  to  the  20-inchclear  water  effluent  pipes 
from  the  filter- tanks,  six  floating  weirs,  as  de- 
scribed  in  paragraphs  41,  42,  43,  44,  45,  46,  47,  48, 
49)  5°)  51)  and  others  if  revelant,  and  illustrated 
upon  drawings,  sheets  Nos.  9,  10,  and  20A. 

The  total  weight  of  the  metal  in  these  weirs 
shall  be  not  less  than . pounds. 

This  proposal  is  submitted  for  the  six  floating 
weirs  and  appurtenances,  erected  and  completed  in 


— 108  — 


accordance  with  the  plans  and  specifications  com¬ 
bined.  Any  minor  parts  needed  for  completing 
them  as  intended  by  drawings  and  specifications, 
are  herein  included  and  will  be  furnished,  whether 
or  not  they  are  illustrated  upon  the  drawings  or 
enumerated  in  the  specifications. 

We  further  agree  to  furnish  working  drawings, 
the  material,  and  perform  the  work  bid  upon,  in 
conformity  with  the  plans  and  specifications  submit¬ 
ted  to  us  for  examination ;  which  plans  and  speci¬ 
fications  we  hereby  acknowledge  to  be  sufficient, 
which  we  understand,  and  which  we  declare  binding 
upon  us  as  a  contract  for  this  portion  of  the  work, 
if  it  be  awarded  to  us.  And  further,  that  we  will 
forthwith  commence  any  and  all  work  pertaining 
thereto,  and  continuously  prosecute  it  until  com¬ 
pleted,  which  shall  be  in  the  time  specified  for  this 
class  of  work,  and  assume  as  independent  contrac¬ 
tors  all  risk  of  accidents  and  claims  for  damages. 
We  will  also  run  the  risk  of  damage  by  transpor¬ 
tation,  by  climatic  causes,  or  wind  and  weather, 
by  fire  and  by  labor  strikes,  and  all  other  risks 
to  any  of  the  work  awarded  to  us  (except  the 


— 109  — 


acts  of  the  Water  Company),  while  said  work  is 
in  progress  and  until  completed  and  accepted. 

All  the  foregoing  we  propose  to  manufacture, 

deliver,  and  connect,  for  the  sum  of  . 

. . .  ($ . )  dollars, 

under  the  supervision,  inspection,  test,  and  accept¬ 
ance  of  the  Louisville  Water  Company. 

We  enclose  a  certified  check  in  the  sum  of. . 

. ($ . )  dollars, 

as  a  guarantee  that  if  this  work  is  awarded  to  us 
we  will  execute  a  contract  therefor,  with  approved 
security,  within  ten  days  from  the  time  of  awarding 
the  contract. 

Our  suret . will  be  the . „ . . 


which  will  execute  a  bond  in  the  sum  of 

. * . ($  )  dollars, 

guaranteeing  our  performance  of  this  work  in  ac¬ 
cordance  with  the  plans,  specifications,  terms  of 
contract,  and  the  sum  agreed  upon. 

Very  respectfully, 


-110- 


PROPOSAL  VIII. 


FOR  SAND  LAYER  SUPPORT  AND  STRAINER  SYSTEM. 


To  the  Louisville  Water  Company , 

of  Louisville,  Ky. 

Gentlemen  : 

We,  the  undersigned . . 

. . . as  principal  , 

and . 

. . as  suret . , 

being  all  the  parties  directly  or  indirectly  interested 
in  this  bid,  propose  to  the  Louisville  Water  Com¬ 
pany  to  furnish  the  materials,  deliver  in  filter-house, 
put  in  place,  fasten  to  tank  and  to  each  other,  the 
wire  and  webs  of  wire-cloths  which  are  to  form  the 
sand  layer  support  and  strainer  system,  all  as  de¬ 
scribed  in  specifications,  paragraphs  54,  55,  56,  and 
others  if  relevant,  and  illustrated  on  drawings, 
sheets  Nos.  11A,  12 A,  and  13B. 


—  Ill  — 


This  proposal  is  submitted  for  furnishing  the 
sand  layer  support  and  strainer  system  in  three 
filter -tanks,  erected  and  completed  in  accordance 
with  the  plans  and  specifications  combined.  Any 
minor  parts  needed  for  completing  the  work  as  in¬ 
tended  by  drawings  and  specifications  are  herein 
included  and  will  be  furnished,  whether  or  not  they 
are  illustrated  upon  the  drawings  or  enumerated  in 
the  specifications. 

We  further  agree  to  furnish  working  drawings, 
the  material,  and  perform  the  work  bid  upon,  in 
conformity  with  the  plans  and  specifications  submit¬ 
ted  to  us  for  examination ;  which  plans  and  speci¬ 
fications  we  hereby  acknowledge  to  be  sufficient, 
which  we  understand,  and  which  we  here  declare 
binding  upon  us  as  a  contract  for  this  portion  of 
the  work,  if  it  be  awarded  to  us.  And  further,  that 
we  will  forthwith  commence  all  work  pertaining 
thereto,  and  continuously  prosecute  it  until  com¬ 
pleted,  which  shall  be  in  the  time  specified  for  this 
class  of  work,  and  assume  as  independent  contrac¬ 
tors  all  risk  of  accidents  and  claims  for  damages. 
We  will  also  run  the  risk  of  damage  by  transporta¬ 
tion,  by  climatic  causes,  or  wind  and  weather,  by 
fire  and  by  labor  strikes,  and  all  other  risks  to  any 


— 112  — 


of  the  work  awarded  to  us  (except  the  acts  of  the 
Water  Company),  while  said  work  is  in  progress 

and  until  completed  and  accepted. 

All  the  foregoing,  weighing  not  less  than . 

pounds  complete,  we  propose  to  manufacture,  de¬ 
liver,  and  connect,  for  the  sum  of 

. . . {$ - ) 

dollars,  under  the  supervision,  inspection,  test,  and 

acceptance  of  the  Louisville  Water  Company. 

We  enclose  a  certified  check  in  the  sum  of 

. . . . . _ . (* . ~.) 

dollars,  as  a  guarantee  that  if  this  work  is  awarded 
to  us  we  will  execute  a  contract  therefor,  with  ap¬ 
proved  security,  within  ten  days  from  the  time  of 
awarding  the  contract. 

Our  suret . will  be  the . 


which  will  execute  a  bond  in  the  sum  of. . . 

. . (# . ) 

dollars,  guaranteeing  our  performance  of  this  work 
in  accordance  with  the  plans,  specifications,  terms  of 
contract,  and  the  sum  agreed  upon. 

Very  respectfully, 


-113- 


PROPOSAL  IX. 


FOR  ELECTRIC  TRAVELING-CRANE. 


To  the  Louisville  Water  Company , 

of  Louisville ,  Ky. 

Gentlemen  : 

We,  the  undersigned . . 

. as  principal  , 

and . . 

. . . as  snret . , 

being  all  the  parties  directly  or  indirectly  interested 
in  this  bid,  propose  to  the  Louisville  Water  Com¬ 
pany  to  furnish  the  materials,  construct,  transport 
to,  deliver  in  filter-house,  erect  and  put  in  practical 
operation,  upon  ways  prepared  therefor  by  the  Louis¬ 
ville  Water  Company,  an  electric  traveling  -  crane,  as 
described  in  specifications,  paragraphs  19  and  67,  and 
others  if  relevant,  and  illustrated  by  drawings,  sheets 
Nos.  5,  6,  7,  8,  and  9. 


8 


—  114  — 


The  crane  shall  he  built  to  conform  to  the  gen¬ 
eral  plan  illustrated  upon  the  drawings,  constructed 
principally  of  mild  steel,  ultimate  strength  60,000 
to  70,000  pounds  per  square  inch ;  elastic  limit, 
not  less  than  one-half  the  ultimate  strength;  elon¬ 
gation,  20  per  cent,  in  eight  inches;  minimum 
reduction  at  area  of  fracture,  40  per  cent.  It  shall 
bend  cold  180  degrees  to  a  diameter  equal  to  the 
thickness  of  the  piece  tested,  without  crack  or  flaw 
on  the  outside  of  the  bent  portion.  The  cast  iron 
shall  be  tough  gray  metal  of  the  best  quality.  A 
cast  bar,  5  feet  long,  1  inch  square,  from  which  the 
skin  has  been  removed,  resting  on  supports  4  feet 
6  inches  apart,  shall  bear,  without  breaking,  a  weight 
of  500  pounds  suspended  at  the  center,  with  a  de¬ 
flection  of  not  less  than  1  y2  inches.  The  bolts  and 
nuts  shall  be  made  of  the  best  quality  of  rolled 
coke-made  iron,  such  as  used  in  bridge  construction. 

The  traveling -crane  shall  be  fitted  with  electric 
motors,  of  such  design,  construction,  and  power  as 
will  satisfactorily  operate  both  the  bridge  and  the 
trolley,  which,  together,  are  to  carry  a  weight,  and 
traverse  the  floor  of  the  building  therewith  in  both 


— 115  — 


directions,  of  not  less  than  65  tons,  exclusive  of  the 
weights  of  trolley  and  bridge. 

The  rivet  holes  shall  be  drilled  or  punched  and 

reamed;  rivets,  of  the  best . ’s  steel  rivets, 

driven  carefully  and  solidly  without  the  use  of 
drifts.  Rivets  shall  be  cone,  button,  steeple,  or  coun¬ 
tersunk,  as  the  Water  Company  may  elect. 

The  crane  shall  be  placed,  completely  finished, 
iipon  the  ways  in  the  filter-house,  ready  for  service. 
The  steel  plates,  angles,  etc.,  composing  the  crane 
shall  be  delivered  and  put  up  free  from  rust,  and 
thereafter  receive  a  thick  coat  of  raw  linseed  oil  to 
protect  them  against  rusting  until  finally  painted, 
which  painting  is  not  a  part  of  this  contract.  The 
application  of  the  linseed  oil  may  be  at  the  factory 
before  rusting  and  transportation. 

The  total  weight  of  steel,  cast  iron  and  wrought 
iron,  shall  be  not  less  than . pounds. 

This  proposal  is  submitted  for  the  work,  com¬ 
plete,  in  accordance  with  the  plans  and  specifications 
combined.  Any  minor  parts  needed  for  completing 
the  work  as  intended  by  the  drawings  and  specifica¬ 
tions,  are  herein  included  and  will  be  furnished, 


—  116  — 


whether  or  not  they  are  illustrated  upon  the  draw¬ 
ings  or  enumerated  in  the  specifications. 

We  further  agree  to  furnish  working  drawings, 
the  material,  and  perform  the  work  bid  upon,  in 
conformity  with  the  plans  and  specifications  submit¬ 
ted  to  ns  for  examination;  which  plans  and  speci¬ 
fications  we  hereby  acknowledge  to  be  sufficient, 
which  we  understand,  and  which  we  here  declare 
binding  upon  us  as  a  contract  for  this  portion  of 
the  work,  if  it  be  awarded  to  us.  And  further, 
that  we  will  forthwith  commence  any  and  all  work 
pertaining  thereto,  and  continuously  prosecute  it 
until  completed,  which  shall  be  in  the  time  speci¬ 
fied  for  this  class  of  work,  and  assume  as  independ¬ 
ent  contractors  all  risk  of  accidents  and  claims  for 
damages.  We  will  also  run  the  risk  of  damage  by 
transportation,  by  climatic  causes,  or  wind  and 
water,  by  fire  and  by  labor  strikes,  and  all  other 
risks,  to  any  of  the  work  awarded  to  us  (except  the 
acts  of  the  Water  Company),  while  said  work  is  in 
progress,  and  until  completed  and  accepted. 

All  the  foregoing  we  propose  to  furnish,  do,  and 
complete  inside  of  months  from  award  of 


-117- 


contract,  for  the  sum  of. . 

. ($ . )  dollars. 

We  enclose  a  certified  check  in  the  sum  of 

. ($ . ) 

dollars,  as  a  guarantee  that  if  the  work  is  awarded 
to  us  we  will  execute  a  contract  therefor,  with  ap¬ 
proved  security,  within  ten  days  from  the  time  of 
awarding  the  contract. 

Our  suret . will  be  the . . 


which  will  execute  a  bond  in  the  sum  of . . 

. ($ . )  dollars, 

guaranteeing  our  performance  of  this  work  in  ac¬ 
cordance  with  the  plans,  specifications,  terms  of  con¬ 
tract,  and  the  sum  agreed  upon. 

Very  respectfully, 


-118- 


PROPOSAL  x. 


FOR  AGITATOR. 


To  the  Louisville  Water  Company , 

of  Louisville,  Ky. 

Gentlemen  : 

We,  the  undersigned . 

. as  principal  , 

and . • . . . 

. as  snret . , 

being  all  the  parties  directly  or  indirectly  interested 
in  this  bid,  propose  to  the  Louisville  Water  Com¬ 
pany,  to  furnish  the  materials,  construct,  transport 
to,  deliver  in  filter-house,  suspend,  and  connect  with 
the  trolley  upon  the  electric  traveling-crane,  an  agi¬ 
tator  as  described  in  the  specifications,  paragraphs 
1 8,  66,  68,  and  69,  and  others  if  relevant  thereto, 
and  illustrated  by  drawings,  sheets  Nos.  15,  16,  17, 
and  18. 


—  119  — 


The  agitator  shall  be  built  to  conform  to  the 
general  plan  illustrated  upon  the  drawings,  con¬ 
structed  principally  of  mild  steel,  ultimate  strength 
60,000  to  70,000  pounds  per  square  inch ;  elastic 
limit,  not  less  than  one-half  the  ultimate  strength  ; 
elongation,  20  per  cent,  in  eight  inches ;  minimum 
reduction  at  area  of  fracture,  40  per  cent.  It  shall 
bend  cold  180  degrees  to  a  diameter  equal  to  the 
thickness  of  the  piece  tested,  without  crack  or  flaw 
on  the  outside  of  the  bent  portion.  The  cast-iron 
shall  be  tough  gray  metal  of  the  best  quality.  A 
cast  bar,  5  feet  long,  1  inch  square,  from  which  the 
skin  has  been  removed,  resting  on  supports  4  feet 
6  inches  apart,  shall  bear,  without  breaking,  a 
weight  of  500  pounds  suspended  at  the  center,  with 
a  deflection  of  not  less  than  1^2  inches.  The  bolts 
and  nuts  shall  be  made  of  the  best  quality  of  rolled 
coke-made  iron,  such  as  used  in  bridge  construction. 

The  agitator  shall  be  fitted  with  electric  motors, 
worms,  worm-wheel  nuts,  and  suspending  screws,  as 
illustrated  upon  the  drawings,  supported  upon, 
secured  to,  and  connected  with,  the  grille  of  the 
agitator,  with  freely  fitted  moving  parts  and  abun- 


120  - 


dant  strength  to  perform  the  functions  required 
thereof. 

The  rivet  holes  shall  be  punched  and  reamed; 

rivets,  of  the  best . ’s  steel  rivets,  driven 

carefully  and  solidly  without  the  use  of  drifts. 
Rivets  shall  be  cone,  button,  steeple,  or  countersunk, 
as  the  Water  Company  may  elect. 

The  agitator  shall  be  placed,  completely  finished, 
in  the  filter-house,  suspended  from  the  trucks  of  the 
trolley,  ready  for  service.  The  steel  plates,  angles, 
etc.,  composing  the  agitator,  shall  be  delivered  and 
put  up  free  from  rust,  and  thereafter  receive  a  thick 
coat  of  raw  linseed  oil  to  protect  them  against  rust¬ 
ing  until  finally  painted,  which  painting  is  not  a 
part  of  this  contract.  The  application  of  linseed 
oil  may  be  made  at  the  factory  before  transpor¬ 
tation. 

The  total  weight  of  steel,  cast-iron,  and  wrought- 
iron,  shall  be  not  less  than . pounds. 

This  proposal  is  submitted  for  the  work,  com¬ 
plete,  in  accordance  with  the  plans  and  specifica¬ 
tions  combined.  Any  minor  parts  needed  for  com¬ 
pleting  it  as  intended  by  drawings  and  specifica- 


—  121 


tions,  are  herein  included  and  will  be  furnished, 
whether  or  not  they  are  illustrated  upon  the  draw¬ 
ings  or  enumerated  in  the  specifications. 

We  further  agree  to  furnish  working  drawings, 
the  material,  and  perform  the  work  bid  upon,  in 
conformity  with  the  plans  and  specifications  submit¬ 
ted  to  us  for  examination;  which  plans  and  specifica¬ 
tions  we  hereby  acknowledge  to  be  sufficient,  which 
we  understand,  and  which  we  here  declare  binding 
upon  us  as  a  contract  for  this  portion  of  the 
work,  if  it  be  awarded  to  us.  And  further,  that 
we  will  forthwith  commence  all  work  pertaining 
thereto,  and  continuously  prosecute  it  until  com¬ 
pleted,  which  shall  be  in  the  time  specified  for  this 
class  of  work,  and  assume  as  independent  contractors 
all  risk  of  accidents  and  claims  for  damages.  We 
will  also  run  the  risk  of  damage  by  transportation, 
by  climatic  causes,  or  wind  and  weather,  by  fire  and 
by  labor  strikes,  and  all  other  risks  to  any  of  the 
work  awarded  to  us  (except  the  acts  of  the  Water 
Company),  while  said  work  is  in  progress  and 
until  completed  and  accepted. 

All  the  foregoing  we  propose  to  furnish,  do, 


—  122  — 


and  complete  inside  of. . months  from 

award  of  contract,  for  the  sum  of . 

. . (*  ) 

dollars. 

We  enclose  a  certified  check  in  the  sum  of 


($ . )  dollars,  as  a  guarantee  that  if  the 

work  is  awarded  to  us  we  will  execute  a  contract 
therefor,  with  approved  security,  within  ten  days 
from  the  time  of  awarding  the  contract. 

Our  suret . will  be  the . . 


which  will  execute  a  bond  in  the  sum  of . 

. ($ . ) 

dollars,  guaranteeing  our  performance  of  this  work 
in  accordance  with  the  plans,  specifications,  terms 
of  contract,  and  the  sum  agreed  upon. 

Very  respectfully, 


— 123  — 


PROPOSAL  XI. 


FOR  ELECTRIC  MOTORS. 


To  the  Louisville  Water  Company , 

of  Louisville,  Ky. 

Gentlemen  : 

We,  the  undersigned . 

. . as  principal  , 

and . .  . . . . 

. as  suret . , 

being  all  the  parties  directly  or  indirectly  interested 
in  this  bid,  propose  to  the  Lonisville  Water  Com¬ 
pany  to  furnish  the  materials,  build,  transport,  erect, 
and  connect  in  the  filter-house,  the  electric  motors 
described,  embraced,  and  contemplated  by  paragraphs 
20,  57)  58,  65,  and  108,  and  others  if  relevant 
thereto,  of  the  specifications. 

The  motors  shall  be  of  the . 


—  124  — 


kind,  of  a  design  and  construction,  including  quality 
of  material,  acceptable  to  the  Louisville  Water  Com¬ 
pany,  for  which  we  submit  herewith  plans  and  spec¬ 
ifications,  in  accordance  with  which  the  motors  are 
to  be  constructed,  erected,  and  connected  with  the 
leading  wires,  to  the  approval,  satisfaction,  and  ac¬ 
ceptance  of  the  Water  Company.  The  motors,  with 
all  their  appliances,  have  been  designed  especially 
for  the  service  to  be  performed  by  them,  which  we 
guarantee,  and  agree  to  keep  them  in  repair  for  one 
year  after  completion  and  acceptance,  so  far  as  re¬ 
pairs  may  become  necessary  by  reason  of  the  motors 
failing  to  perform  the  work,  proving  defective  in 
material  and  construction,  or  unsuitable  for  the  pur¬ 
pose  intended. 

This  proposal  is  submitted  for  furnishing  the 
motors  and  doing  the  work  complete,  in  accord¬ 
ance  with  our  plans  and  specifications  combined. 
Any  minor  parts  needed  for  completing  the  work 
as  intended  by  drawings  and  specifications,  are 
herein  included  and  will  be  furnished,  whether  or 
not  they  are  illustrated  upon  the  drawings  or 
enumerated  in  the  specifications. 


— 125  — 


We  further  agree  to  furnish  working  drawings, 
the  material,  and  perform  the  work  bid  upon,  in 
conformity  with  the  plans  and  specifications  submit¬ 
ted  to  us  for  examination;  which  plans  and  speci¬ 
fications  we  hereby  acknowledge  to  be  sufficient, 
which  we  understand,  and  which  we  here  declare 
binding  upon  us  as  a  contract  for  this  portion  of 
the  work,  if  it  be  awarded  to  us.  And  further,  that 
we  will  forthwith  commence  all  work  pertaining 
thereto,  and  continuously  prosecute  it  until  com¬ 
pleted,  which  shall  be  in  the  time  specified  for  this 
class  of  work,  and  assume  as  independent  contrac¬ 
tors  all  risk  of  accidents  and  claims  for  damages. 
We  will  also  run  the  risk  of  damage  by  transporta¬ 
tion,  by  climatic  causes,  or  wind  and  weather,  by 
fire  and  by  labor  strikes,  and  all  other  risks  to  any 
of  the  work  awarded  to  us  (except  the  acts  of 
the  Water  Company),  while  said  work  is  in  pro¬ 
gress  and  until  completed  and  accepted. 

These  motors  we  propose  to  furnish  in  accord¬ 
ance  with  plans  and  specifications,  inside  of. . 

months  from  award  of  contract,  for  the  following 
prices,  viz: 


—  126  — 


28  one-horse  power  motors,  for  operating  20-inch 

gate-valves  inside  of  filter-house, . . . . 

. ($ . )  dollars. 

2  two -horse  power  motors,  for  operating  30-ineh 

gate-valves  outside  of  filter-house, . 

. ($ . )  dollars. 

2  three-horse  power  motors,  for  operating  36-inch 

gate-valves  outside  of  filter-house, . . . 

. .($ . )  dollars. 

4  three-horse  power  motors,  for  operating  36-inch 
gate-valves  inside  of  filter-house, 
. ($ . )  dollars. 

2  four-horse  power  motors,  for  operating  48-inch 
gate-valves  outside  of  filter-house, 
. ($ . )  dollars. 

Total, . . 

($ .  )  dollars. 

We  enclose  a  certified  check  in  the  sum  of 

. ($ . )  dollars, 

as  a  guarantee  that  if  this  work  is  awarded  to  ns 
we  will  execute  a  contract  therefor,  with  approved 
security,  within  ten  days  from  the  time  of  awarding 
the  contract. 


—  127  — 


Our  suret . will  be  tbe. 


which  will  execute  a  bond  in  the  sum  of. . 

. ($ . )  dollars, 

guaranteeing  our  performance  of  this  work  in  ac¬ 
cordance  with  the  plans,  specifications,  terms  of 
contract,  and  the  sum  agreed  upon. 

Very  respectfully, 


— 128  — 


PROPOSAL  XII. 


FOR  GAUGES  AND  TABLETS. 


To  the  Louisville  Water  Company , 

of  Louisville ,  Ky. 

Gentlemen : 

We,  the  undersigned . 

. . . as  principal  , 

and . . 

. as  suret. . , 

being  all  the  parties  directly  or  indirectly  interested 
in  this  bid,  propose  to  the  Louisville  Water  Com¬ 
pany  to  furnish,  deliver,  and  put  up,  on  acceptable 
black  variegated  marble -polished  tablets,  the  gauges 
described  in  paragraphs  58,  93,  94,  95,  96,  97,  98,  99, 
and  others  if  relevant,  of  the  specifications. 

We  will  put  them  up,  including  all  piping  and 
fittings,  upon  five  different  marble  tablets,  four  of 
them  located  on  the  southerly  wall  in  the  filter- 


—  129  — 


house,  and  one  on  the  northerly  wall.  Two  tablets 
on  the  southerly  wall  shall  contain  six  gauges  each; 
one,  three  gauges;  one,  one  gauge;  and  the  one  on 
the  northerly  wall  in  the  house,  one  gauge;  making 
in  all  seventeen  gauges,  upon  five  different  tablets. 

We  submit  herewith  designs  and  descriptions, 
with  specifications  of  the  several  gauges  to  be  fur¬ 
nished,  as  follows: 


9 


— 130  — 


This  proposal  is  submitted  for  furnishing  the 
gauges  and  tablets,  complete,  in  accordance  with 
illustrations,  descriptions,  and  specifications  com¬ 
bined.  Any  minor  parts  needed  for  completing 
them,  as  intended  by  illustrations,  descriptions,  and 
specifications,  are  herein  included,  and  will  be  fur¬ 
nished,  whether  or  not  they  are  illustrated  upon  our 
plans  or  enumerated  in  onr  descriptions  and  speci¬ 
fications. 

We  further  agree  to  furnish  the  gauges,  marble 
tablets,  and  erect  them  completed  in  accordance  with 
the  illustrations,  descriptions,  and  specifications  we 
have  submitted  for  examination,  which  illustrations, 
descriptions,  and  specifications  we  hereby  present  as 
sufficient,  which  we  understand,  and  which  we  hereby 
declare  binding  upon  us  as  a  contract  for  this  por¬ 
tion  of  the  work,  if  it  be  awarded  to  us.  And  fur¬ 
ther,  that  we  will  forthwith  commence  any  and  all 
work  pertaining  thereto,  and  continuously  prosecute 
it  until  completed,  which  shall  be  in  the  time  spec- 


—  131  — 


ified  for  this  class  of  work,  and  assume  as  independ¬ 
ent  contractors  all  risks  of  accidents  and  claims  for 
damages.  We  will  also  run  the  risk  of  damage  by 
transportation,  by  climatic  causes,  or  wind  and 
weather,  by  fire  and  labor  strikes,  and  all  other 
risks  to  this  work  awarded  to  us  (except  the  acts  of 
the  Water  Company),  while  said  gauges  and  tablets 
are  in  progress  of  manufacture,  transportation,  erec¬ 
tion,  and  until  completed  and  accepted. 

These  gauges  and  tablets  we  propose  to  furnish 
in  accordance  with  our  illustrations,  descriptions,  and 

specifications,  inside  of . : . months  from  award 

of  contract,  for  the  following  prices,  viz : 

Six  pressure  gauges,  as  described  in  paragraph 
94  of  the  specifications,  upon  one  marble  tablet,  for 

the  sum  of . 

($ . )  dollars. 

Six  vacuum  gauges,  as  described  in  paragraph  95 
of  the  specifications,  with  marble  tablet,  for  the 

sum  of . . . ' . 

($ . . )  dollars. 

Two  vacuum  gauges  and  one  pressure  gauge,  as 

described  in  paragraphs  96  and  97,  respectively,  of 


—  132  — 


the  specifications,  placed  upon  one  marble  tablet,  for 

the  sum  of . £ . i . 

($ . )  dollars. 

Two  pressure  gauges,  as  described  in  paragraph 
98  of  the  specifications,  erected  each  upon  a  tablet, 
one  in  the  southerly  and  the  other  in  the  northerly 

end  of  the  filter -house,  for  the  sum  of . 

. ($ . )  dollars. 

We  enclose  certified  check  in  the  sum  of . 

. ($ . )  dollars, 

as  a  guarantee  that  if  the  work  is  awarded  to  us 
we  will  execute  a  contract  therefor,  with  approved 
security,  within  ten  days  from  the  time  of  award¬ 
ing  the  contract. 

Our  suret  will  be  the . 


which  will  execute  a  bond  in  the  sum  of. . 

. . . -•-••(# . ) 

dollars,  guaranteeing  our  performance  of  this  work 
in  accordance  with  the  plans,  specifications,  terms  of 
contract,  and  the  sum  agreed  upon. 

Very  respectfully, 


133  — 


PROPOSAL  XIII. 


FOR  SAND. 


To  the  Louisville  Water  Company , 

of  Louisville,  Ky. 

Gentlemen  : 

We,  the  undersigned 

. n . ; . ..... . . . as  principal  , 

and . . . ... . ilSSfi  UI2 . . . . . 

. as  suret . , 

being  all  the  parties  directly  or  indirectly  interested 
in  this  bid,  propose  to  the  Louisville  Water  Com¬ 
pany  to  furnish,  deliver,  and  put  in  each  of  the 
three  tanks  in  the  southerly  end  of  the  filter-house, 
five  hundred  (500)  cubic  yards  of  sand,  as  described 
in  specifications,  paragraph  91,  and  others  if  relevant. 

This  proposal  is  submitted  conditioned  upon  fur¬ 
nishing  sand  of  acceptable  quality  in  all  respects. 
We  submit  herewith  samples  which  exhibit  the  de¬ 
gree  of  fineness,  uniformity  in  size  of  grain,  and 
cleanness  of  the  sand  which  we  propose  to  furnish. 


—  134  — 


We  will  furnish  this  sand,  transport  it  to  the 
filter-house,  and  deposit  it  in  the  tanks  of  the  filters, 

for  the  sum  of . 

($ . )  dollars  per  cubic  yard,  measured  in 

the  tanks,  and  will  deliver  same  whenever  the 
Louisville  Water  Company  will  be  ready  to  receive  it. 
We  enclose  a  certified  check  in  the  sum  of 

. . . ($ . ) 

dollars,  as  a  guarantee  that  if  the  work  is  awarded 
to  us  we  will  execute  a  contract  therefor,  with  ap¬ 
proved  security,  within  ten  days  from  the  time  of 
awarding  the  contract. 

Our  suret . will  be  the . 


which  will  execute  a  bond  in  the  sum  of 

. ($ . ) 

dollars,  guaranteeing  our  performance  of  this  work 
in  accordance  with  the  samples,  specifications,  terms 
of  contract,  and  the  sum  agreed  upon. 

Very  respectfully, 


—  135  — 


PROPOSAL  XIV. 


FOR  STAND-PIPE  AND  FOUR  SULPHATE  OF  ALUMINA 
SOLUTION  TANKS. 


To  the  Louisville  Water  Company , 

of  Louisville,  Ky. 

Gentlemen  : 

We,  the  undersigned . ; . 

. as  principal  , 

and . . 

. . as  snret . , 

being  all  the  parties  directly  or  indirectly  interested 
in  this  bid,  propose  to  the  Louisville  Water  Com¬ 
pany  to  furnish  the  materials  and  perform  the  work 
embraced  and  contemplated  by  paragraphs  7,  72,  80, 
81,  82,  83,  and  85,  and  others  if  relevant,  of  the 
specifications,  and  illustrated  on  drawings,  sheets 
Nos.  23,  24,  etc. 

The  stand-pipe  shall  be  built  to  the  form  and 
dimensions,  thickness  of  metal,  and  size  of  members 


— 136  — 


all  as  illustrated  upon  the  drawings.  It  shall  be 
built  of  mild  steel,  ultimate  strength  60,000  to 
70,000  pounds  per  square  inch;  elastic  limit,  not 
less  than  one-half  the  ultimate  strength;  elongation, 
20  per  cent,  in  eight  inches;  minimum  reduction  at 
area  of  fracture,  40  per  cent.  It  shall  bend  cold 
180  degrees  to  a  diameter  equal  to  the  thickness  of 
the  piece  tested,  without  crack  or  flaw  on  the  out¬ 
side  of  the  bent  portion. 

The  rivets  shall  be  of . ’s  best,  and  of 

steel,  the  holes  in  the  plates  are  to  be  drilled  or 
punched  and  reamed  to  fit  or  match  exactly,  riveted 
without  the  use  of  drifting,  thoroughly  caulked  and 
made  water-tight.  Rivets  shall  be  cone,  button, 
steeple,  or  countersunk,  as  the  Water  Company  may 
elect. 

The  stand-pipe  shall  be  built  in  two  sections, 
the  lower  45  feet  and  the  upper  30  feet,  in  height, 
all  as  illustrated  upon  the  drawings  and  described 
in  the  specifications. 

The  erection  of  the  pipe  shall  be  commenced  by 
putting  together  on  falseworks  the  bottom  thereof, 
the  angle-bar  around  the  lower  circumference  con- 


—  137  — 


necting  bottom  and  side,  and  the  lower  course  of 
J^-inch  steel-plate  side,  with  the  joints  thoroughly 
caulked,  in  which  condition  it  is  to  be  stayed  to 
preserve  its  form,  supported  on  jacks  outside  of  it, 
have  a  one-inch  bed  of  Portland  mortar  spread 
thereunder,  then  be  lowered  into  it  solidly  bedded 
by  wooden  mauls  to  a  uniformly  solid  and  level 
position,  after  which  the  remainder  of  the  side  is  to 
be  erected. 

We  further  agree  to  furnish,  deliver,  put  in 
place  and  rivet  to  the  sides  of  the  stand-pipe,  the 
two  48-inch  nozzles,  described  in  paragraph  83  of 
the  specifications,  and  illustrated  on  the  drawings, 
sheets  Nos.  23,  24,  etc. 

The  steel-plate  and  other  forms  to  be  used  in 
the  construction  of  this  stand-pipe  shall  not  be 
allowed  to  become  rusty  before  delivery,  to  effect 
which  purpose  it  shall  be  coated  with  linseed  oil 
before  removal  from  the  steel  mills.  After  the 
work  shall  have  been  completed,  the  stand-pipe,  in 
all  its  parts,  shall  be  thoroughly  cleaned,  made 
perfectly  dry,  and  afterwards  receive  three  coats 
of  such  asphalt  or  other  paint  as  the  Water  Com- 


—  138  — 


pany  may  select,  except  the  inside  surfaces  of  the 
45-foot  section  of  the  pipe,  which  are  to  be  coated 
with  Portland  cement  mortar  all  around  one  inch 
thick. 

The  total  weight  of  steel,  cast-iron,  and  wrought- 

iron  shall  be  not  less  than . pounds  when 

the  stand-pipe  is  completed. 

This  proposal  is  submitted  for  the  work,  com¬ 
plete,  in  accordance  with  the  plans  and  specifications 
combined.  Any  minor  parts  needed  for  completing 
it  as  intended  by  drawings  and  specifications  are 
herein  included  and  will  be  furnished,  whether  or 
not  they  are  illustrated  upon  the  drawings  or  enu¬ 
merated  in  the  specifications. 

We  further  agree  to  furnish  working  drawings, 
the  material,  and  perform  the  work  bid  upon,  in 
conformity  with  the  plans  and  specifications  submit¬ 
ted  to  us  for  examination ;  which  plans  and  speci¬ 
fications  we  hereby  acknowledge  to  be  sufficient, 
which  we  understand,  and  which  we  declare  binding 
upon  us  as  a  contract  for  this  portion  of  the  work, 
if  it  be  awarded  to  ns.  And  further,  that  we  will 
forthwith  commence  any  and  all  work  pertaining 


139  — 


thereto,  and  continuously  prosecute  it  until  com¬ 
pleted,  which  shall  be  in  the  time  specified  for  this 
class  of  work,  and  assume  as  independent  contrac¬ 
tors  all  risk  of  accidents  and  claims  for  damages. 
We  will  also  run  the  risk  of  damage  by  transpor¬ 
tation,  by  climatic  causes,  or  wind  and  weather, 
by  fire  and  by  labor  strikes,  and  all  other  risks 
to  any  of  the  work  awarded  to  ns  (except  the 
acts  of  the  Water  Company),  while  said  work  is 
in  progress  and  until  completed  and  accepted. 

We  also  propose  to  furnish  and  complete  inside 

of . months  from  award  of  contract,  the  several 

parts  of  the  stand-pipe,  for  the  following  sums,  viz: 

For  the  stand-pipe,  complete,  75  feet  high,  in¬ 
cluding  material  and  painting,  the  sum  of 
. ($ . )  dollars. 

For  two  48-inch  cast-iron  nozzles,  with  flanges 

and  sockets,  furnished,  put  in  place,  and  riveted  to 

\ 

stand-pipe,  the  sum  of . 

. . ($ . )  dollars. 

For  coating  the  stand-pipe  on  the  inside,  both 
bottom  and  side,  with  Portland  cement  mortar  one 


—  140  — 


inch  thick,  the  sum  of . S . 

. . ($ . )  dollars. 

We  enclose  a  certified  check  in  the  sum  of 

. ($ . )  dollars, 

as  a  guarantee  that  if  this  work  is  awarded  to  us 
we  will  execute  a  contract  therefor,  with  approved 
security,  within  ten  days  from  the  time  of  awarding 
the  contract. 

Our  suret . will  be  the . 


which  will  execute  a  bond  in  the  sum  of 

. . . ($ . . . )  dollars, 

guaranteeing  our  performance  of  this  work  in  ac¬ 
cordance  with  the  plans,  specifications,  terms  of 
contract,  and  the  sum  agreed  upon. 

Very  respectfully, 


— 141  — 


PROPOSAL  XV. 


FOR  METER-MOTOR. 


To  the  Louisville  Water  Company , 

of  Louisville,  Ky. 

Gentlemen  : 

We,  the  undersigned . 

. as  principal  , 

and . 1 . . 

. . *. . as  suret . 

being  all  the  parties  directly  or  indirectly  interested 
in  this  bid,  propose  to  the  Louisville  Water  Com¬ 
pany  to  design,  construct,  test,  furnish,  transport  to, 
and  erect  in  the  stand-pipe  within  the  coagulant- 
house,  a  meter-motor,  as  described  in  paragraphs  7 5, 
84,  and  86,  and  others  if  relevant,  of  the  specifica¬ 
tions,  and  represented  upon  drawings,  sheets  Nos. 


We  propose  to  design,  construct,  and  calibrate 


—  142  — 


this  meter-motor  so  as  to  pass  water  at  a  known 
percentage  of  the  volume  due  to  the  displacement 
by  the  rotation  of  the  buckets,  which  percentage 
we  propose  to  determine  experimentally  between 
ranges  of  delivery  rates,  commencing  with  io  million 
gallons  per  24  hours  and  ending  with  75  million 
gallons,  and  a  speed  varying  from  ten  to  twenty 
revolutions  per  minute. 

We  propose  to  so  design  and  construct  this 
meter -motor  as  to  yield  not  less  than  six-horse 
power  mechanical  energy  at  the  lowest  rate  of  speed 
for  which  the  coefficient  of  water  delivery  by  the 
meter-motor  has  been  determined.  We  propose  to 
build  the  meter-motor  of  either  acid-proof  bronze  or 
aluminum,  of  such  design,  precision  of  fluid  volume 
measurement,  and  smoothness  of  action  as  to  give 
it  the  greatest  practicable  durability. 

This  proposal  is  submitted  for  building,  testing, 
and  calibrating  the  meter-motor  in  accordance  with 
our  drawings,  descriptions,  and  specifications,  as  also 
to  meet  the  requirements  of  the  Water  Company’s 
specifications  and  drawings.  Any  minor  parts  needed 
for  completing  it  as  intended  by  illustrations,  de- 


—  143  — 


scriptions,  and  specifications,  are  hereby  included 
and  will  be  furnished,  whether  or  not  they  are  illus¬ 
trated  upon  our  plans  or  enumerated  in  our  descrip¬ 
tions  and  specifications. 

We  further  agree  to  transport,  deliver,  and  erect 
in  the  stand-pipe,  the  meter-motor  in  accordance 
with  the  illustrations,  descriptions,  and  specifications 
we  have  submitted  for  examination;  which  illustra¬ 
tions,  descriptions,  and  specifications  we  hereby  pre¬ 
sent  as  sufficient,  which  we  understand,  and  which 
we  hereby  declare  binding  upon  us  as  a  contract  for 
this  portion  of  the  work,  if  it  be  awarded  to  us. 
And  further,  that  we  will  forthwith  commence  any 
and  all  work  pertaining  thereto,  and  continuously 
prosecute  it  until  completed,  which  shall  be  in  the 
time  specified  for  this  class  of  work,  and  assume  as 
independent  contractors  all  risk  of  accidents  and 
claims  for  damages.  We  will  also  run  the  risk  of 
damage  by  transportation,  by  climatic  causes,  or  wind 
and  weather,  by  fire  and  by  labor  strikes,  and  all 
other  risks  to  this  work  awarded  to  us  (except  the 
acts  of  the  Water  Company),  while  said  meter-motor  is 
in  progress  of  design,  manufacture,  calibration,  tran¬ 
sportation,  erection,  and  until  completed  and  accepted. 

We  will  construct,  transport,  erect,  and  complete 
meter-motor  in  accordance  with  our  illustrations, 


—  144  — 


descriptions,  and  specifications,  and  the  Water  Com¬ 
pany’s  specifications,  in  which  the  vertical  height  of 
the  meter-motor  is  to  end  with  a  flange  at  a  point 

40  feet  from  the  bottom  of  the  stand-pipe,  in¬ 
side  of. . months  from  award  of  contract, 

for  the  sum  of . . 

($ . )  dollars,  if  made  of  acid-proof  bronze;  or 

. . . .($ . ) 

dollars  if  made  of  aluminum. 

We  enclose  a  certified  check  in  the  sum  of 


($ . )  dollars,  as  a  guarantee  that  if  this 

work  is  awarded  to  ns  we  will  execute  a  contract 
therefor,  with  approved  security,  within  ten  days 
from  the  time  of  awarding  the  contract. 

Our  snret. . will  be  the . . . 


which  will  execute  a  bond  in  the  sum  of . 

. . : . - . (# . - - - ) 

dollars,  guaranteeing  our  performance  of  this  work 
in  accordance  with  the  plans,  specifications,  terms  of 
contract,  and  the  sum  agreed  upon. 

Very  respectfully, 


-145- 


PROPOSAL  XVI. 


FOR  PUMPS  AND  SLOTTED  DISC-CRANK. 


To  the  Louisville  Water  Company , 

of  Louisville ,  Ky. 

Gentlemen  : 

We,  the  undersigned . . . 

. as  principal  , 

and . ,, . : . . 

. as  snret . , 

being  all  the  parties  directly  or  indirectly  interested 
in  this  bid,  propose  to  the  Louisville  Water  Com¬ 
pany  to  design,  construct,  test,  furnish,  transport  to, 
and  erect  in,  the  stand-pipe  within  the  coagulant- 
house,  a  brass  or  aluminum  pump  and  slotted  disc- 
crank,  as  described  in  paragraphs  76,  86,  87,  88,  89, 
106,  and  others  if  relevant,  of  the  specifications,  and 
represented  on  drawings,  sheets  Nos. 

We  propose  to  design  and  construct  the  slotted 

disc-crank  so  as  to  be  bolted  to  the  upper  end  of 

10 


—  146  — 


the  meter-motor  shaft  in  the  stand-pipe,  and  connect 
therewith,  through  a  connecting-rod  as  described  in 
the  specifications,  the  pump  described  in  paragraph 
106  of  said  specifications.  The  pump  and  slotted 
disc  are  to  be  supported  upon  and  guided  in  two 
floors,  one  near  the  top,  and  the  other  at  the  top,  of 
the  stand-pipe,  as  illustrated  upon  the  drawings. 

We  propose  to  construct  the  slotted  disc -crank 
with  a  sliding  block  and  crank -pin,  to  be  adjusted 
by  the  use  of  a  hand -ratchet  operated  micrometer 
screw,  so  as  to  vary  the  length  of  the  stroke  while 
the  meter-motor  and  pump  are  in  motion. 

We  propose  further  to  construct  this  pump  with 
valves  and  packing  so  perfectly  constructed  and  ad¬ 
justed  as  to  cause  the  pump  to  deliver  98  per  cent. 

of  the  volume  due  to  the  area  of  the  plunger  into 

% 

the  length  of  the  stroke. 

This  proposal  is  submitted  for  building  and 
erecting,  complete,  the  pump  and  slotted  disc-crank 
mechanisms,  including  revolution  counter  and  gallons 
register,  in  accordance  with  our  drawings,  descrip¬ 
tions,  and  specifications,  as  also  to  meet  the  require¬ 
ments  of  the  Water  Company’s  specifications  and 


— 147  — 


drawing's.  Any  minor  parts  needed  for  completing 
the  work  as  intended  by  drawings,  descriptions,  and 
specifications  are  herein  included  and  will  be  fur¬ 
nished,  whether  or  not  they  are  illustrated  upon  the 
plans  or  enumerated  in  our  descriptions  and  speci¬ 
fications. 

We  further  agree  to  transport,  deliver,  and  erect 
in  the  stand-pipe,  the  pump  and  slotted  disc -crank 
in  accordance  with  the  illustrations,  descriptions,  and 
specifications  we  have  submitted  for  examination ; 
which  illustrations,  descriptions,  and  specifications 
we  hereby  present  as  sufficient,  which  we  under¬ 
stand,  and  which  we  hereby  declare  binding  upon 
us  as  a  contract  for  this  portion  of  the  work,  if  it 
be  awarded  to  us.  And  further,  that  we  will  forth¬ 
with  commence  any  and  all  work  pertaining  thereto, 
and  continuously  prosecute  it  until  completed,  which 
shall  be  in  the  time  specified  for  this  work,  and 
assume  as  independent  contractors  all  risk  of  acci¬ 
dents  and  claims  for  damages.  We  will  also  run 
the  risk  of  damage  by  transportation,  by  climatic 
causes,  or  wind  and  weather,  by  fire  and  by  labor 
strikes,  and  all  other  risks  to  this  work  awarded  to 


—  148  — 


us  (except  the  acts  of  the  Water  Company),  while 
said  pump  and  slotted  disc-crank  are  in  progress  of 
design,  manufacture,  transportation,  erection,  and 
until  completed  and  accepted. 

We  will  construct,  transport,  and  erect,  complete, 
in  the  coagulating-house,  at  the  top  of  the  stand¬ 
pipe,  one  slotted  disc -crank  connected  with  two 
pumps,  including  revolution  counter  and  gallons 
register,  in  accordance  with  our  illustrations,  descrip¬ 
tions,  and  specifications,  as  also  the  Water  Company’s 


plans  and  specifications,  inside  of  months 

from  award  of  contract,  for  the  sum  of 

. ($ . ) 

dollars,  if  two  acid-proof  pumps  are  adopted;  or 

. : .  (# . ) 


dollars,  if  the  pumps  are  constructed  of  aluminum; 
in  either  case,  one  pump  being  erected  and  put  in 
operation,  while  the  other  is  furnished  as  a  reserve, 
ready  to  take  the  place  of  the  one  connected. 

We  enclose  a  certified  check  in  the  sum  of 

. ($ - - - ) 

dollars,  as  a  guarantee  that  if  this  work  is  awarded 
to  us  we  will  execute  a  contract  therefor,  with  ap- 


— 149  — 

proved  security,  within  ten  days  from  the  time  of 
awarding  the  contract. 

Our  snret . will  be  the . 


which  will  execute  a  bond  in  the  sum  of . 

. ($ . ) 

dollars,  guaranteeing  our  performance  of  this  work 
in  accordance  with  the  illustrations,  descriptions, 
specifications,  terms  of  contract,  and  the  sum  agreed 
upon. 

Very  respectfully, 


— 150  — 


PROPOSAL  XVII. 


FOR  FLOATING  DISCHARGE  TUBE  IN  STAND-PIPE. 


To  the  Louisville  Water  Company , 

of  Louisville,  Ky. 

Gentlemen : 

We,  the  undersigned . . : . 

. as  principal  , 

and  . . . 

. . as  suret . , 

being  all  the  parties  directly  or  indirectly  interested 
in  this  bid,  propose  to  the  Louisville  Water  Com¬ 
pany  to  design,  construct,  transport  to,  and  erect  in 
the  stand-pipe  within  the  coagulant-house,  and  erect 
and  connect  in  the  stand-pipe  thereof,  one  floating 
discharge  tube  as  described  in  specifications,  para¬ 
graphs  77  and  85,  and  others  if  relevant,  and  illus¬ 
trated  by  drawings,  sheets  Nos. 

The  floating-tube  shall  be  constructed  of  acid- 


— 151  — 


proof  bronze  or  aluminum,  with  a  buoy  or  float  at¬ 
tached  so  as  to  cause  the  weir  lip  of  the  inflow  end 
of  it  to  be  submerged  below  the  surface  of  the 
water,  the  depth  of  submergence  to  be  controlled  by 
the  weighting  of  it  to  a  greater  or  less  degree,  so 
as  to  float  it  at  any  desirable  depth  of  submergence. 
The  weir  tube  is  to  be  48  inches  in  diameter  in  the 
clear,  and  is  to  pass  through  metallic  water-packed 
guide  rings  in  the  upper  end  of  a  72-inch  internal 
diameter  effluent  tee  pipe,  with  a  48-inch  delivery 
branch  bolted  to  the  effluent  nozzle  of  the  stand¬ 
pipe  described  in  paragraph  85 .  On  the  outside 
the  tube  is  to  be  truly  cylindrical  and  smoothly 
finished  so  as  to  pass  practically  frictionless  through 
the  metallic  water-packed  guide-rings  before  named. 
The  72-inch  x  72-inch  x  48-inch  cylinder  and  standing 
tee  pipe  is  to  be  of  cast-iron,  as  illustrated  upon  the 
drawings;  and  is  to  be  coated  with  coal-tar  pitch, 
applied  in  a  hot  bath,  in  the  most  approved  man¬ 
ner  and  to  the  satisfaction  and  acceptance  of  the 
Water  Company. 

This  proposal  is  submitted  for  furnishing,  build¬ 
ing,  and  erecting,  complete,  the  floating-tube,  in  ac- 


—  152  — 


cordance  with  our  drawings,  descriptions,  and  spec¬ 
ifications,  as  also  to  meet  the  requirements  of  the 
Water  Company’s  specifications  and  drawings.  Any 
minor  parts  needed  for  completing  the  work  as  in¬ 
tended  by  drawings,  descriptions,  and  specifications, 
are  hereby  included  and  will  be  furnished,  whether 
or  not  they  are  illustrated  upon  the  plans  or  enumer¬ 
ated  in  our  or  the  Water  Company’s  descriptions 
and  specifications. 

We  further  agree  to  construct,  transport,  deliver, 
and  erect  in  the  stand-pipe,  the  floating-tube  in 
accordance  with  illustrations,  descriptions,  and  spec¬ 
ifications  we  have  submitted  for  examination,  as  also 
those  submitted  by  the  Water  Company,  all  which 
we  hereby  present  and  declare  as  sufficient,  which 
we  understand,  and  which  we  hereby  declare  bind¬ 
ing  upon  us  as  a  contract  for  this  portion  of 
the  work,  if  it  be  awarded  to  us.  And  further, 
that  we  will  forthwith  commence  any  and  all  work 
pertaining  thereto,  and  continuously  prosecute  i  t 
until  completed,  which  shall  be  in  the  time  speci¬ 
fied  therefor,  and  assume  as  independent  contractors 
all  risk  of  accidents  and  claims  for  damages.  We 


— 153  — 


will  also  run  the  risk  of  damage  by  transportation, 
by  climatic  causes,  or  wind  and  water,  by  fire  and 
by  labor  strikes,  and  all  other  risks  to  this  work 
awarded  to  us  (except  the  acts  of  the  Water  Com¬ 
pany),  while  said  floating-tube  is  in  progress  of 
design,  manufacture,  transportation,  and  erection, 
and  until  completed  and  accepted. 

We  will  design,  construct,  transport,  and  erect, 
complete,  in  accordance  with  our  illustrations,  de¬ 
scriptions,  and  specifications,  as  also  those  of  the 
Water  Company,  inside  of  months  from 

award  of  contract: 

Three  pieces  72-inch  x  72-inch  x  48-inch  standing 
cylinder  cast-iron  tee  and  pipe,  for  the  sum  of 

. . . 1 . . . - . (# . ) 

dollars. 

The  floating-tube,  with  weir  and  buoy  attached, 

for  the  sum  of . 

($ . )  dollars  if  made  of  acid-proof  bronze; 

or  the  sum  of. . * . 

($ . )  if  made  of  aluminum. 

We  enclose  a  certified  check  in  the  sum  of 
. (* . ) 


— 154  — 


dollars,  as  a  guarantee  that  if  the  work  is  awarded 
to  us  we  will  execute  a  contract  therefor,  with  ap¬ 
proved  security,  within  ten  days  from  the  time  of 
awarding  the  contract. 

Our  suret . will  be  the . 


which  will  execute  a  bond  in  the  sum  of. . 

. ($ . )  dollars, 

guaranteeing  our  performance  of  this  work  in  ac¬ 
cordance  with  the  plans,  specifications,  terms  of  con¬ 
tract,  and  the  sum  agreed  upon. 

Very  respectfully, 


— 155  — 


PROPOSAL  XVIII. 


FOR  ONE  SULPHATE  OF  ALUMINA  REGULATING 
AND  FEED-TANK. 


To  the  Louisville  Water  Company , 

of  Louisville ,  Ky. 

Gentlemen  : 

We,  the  undersigned . . 

. . . as  principal  , 

and . 

. as  suret . , 

being  all  the  parties  directly  or  indirectly  interested 
in  this  bid,  propose  to  the  Louisville  Water  Com¬ 
pany  to  furnish  the  materials  and  perform  the  work 
embraced  and  contemplated  by  paragraphs  74  and 
103,  and  others  if  relevant,  of  the  specifications,  and 
illustrated  on  drawings,  sheets  Nos. 

The  tank  shall  be  built  to  the  form  and  dimen¬ 
sions,  thickness  of  metal,  and  size  of  members,  all 
as  illustrated  upon  the  drawings.  It  shall  be  built 
of  mild  steel,  ultimate  strength  60,000  to  70,000 


— 156  — 


pounds  per  square  inch ;  elastic  limit,  not  less  than 
one-half  the  ultimate  strength ;  elongation,  20  per 
cent,  in  eight  inches ;  minimum  reduction  at  area 
of  fracture,  40  per  cent.  It  shall  bend  cold  180  de¬ 
grees  to  a  diameter  equal  to  the  thickness  of  the 
piece  tested,  without  crack  or  flaw  on  the  outside 
of  the  bent  portion. 

The  rivets  shall  be  of . ,’s  best,  and 

of  steel,  the  holes  in  the  plates  are  to  be  drilled  or 
punched  and  reamed  to  fit  or  match  exactly,  riveted 
without  the  use  of  drifting,  thoroughly  caulked  and 
made  water-tight. 

The  tank  shall  be  erected  upon  and  fastened  to 
I-beams  built  into  the  house  wall  at  one  end,  and 
fastened  to  the  outside  of  the  stand-pipe  or  coagu- 
lating-tank  on  the  other  end,  and  connected  by 
wrought-iron  lead -lined  pipes,  seven  or  eight  inches 
in  diameter,  with  the  sulphate  of  alumina  solution- 
tanks  as  described  in  paragraph  ,  and  with 
wrought-iron  lead-lined  screw-jointed  pipes,  seven  or 
eight  inches  in  diameter,  to  the  sulphate  of  alumina 
solution  regulating  and  feed  pump,  as  described  in 
paragraph 


—  157  — 


The  tank  is  to  be  fitted  with  a  float -valve  con¬ 
nected  with  the  inflow  pipe  from  the  sulphate  of 
alumina  solution  tanks,  so  as  to  maintain  the  level 
of  the  solution  in  the  io-foot  tank  at  one  constant 
level. 

The  steel -plate  and  other  forms  to  be  used  in 
the  construction  of  this  tank  shall  not  be  allowed 
to  become  rusty  before  delivery,  to  effect  which  pur¬ 
pose  it  shall  be  coated  with  linseed  oil  before  re¬ 
moval  from  the  steel  mills.  After  the  work  shall 
have  been  completed,  the  stand-pipe,  in  all  its  parts, 
shall  be  thoroughly  cleaned,  made  perfectly  dry,  and 
afterwards  receive  three  coats  of  such  asphalt  or 
other  paint  as  the  Water  Company  may  select,  ex¬ 
cept  the  inside  surfaces  of  the  tank,  which  are  to  be 
coated  with  Portland  cement  mortar  all  around  one 
inch  thick. 

The  total  weight  of  steel,  cast  iron  and  wrought 

iron,  shall  be  not  less  than . pounds  when  the 

tank  is  completed. 

This  proposal  is  submitted  for  the  work,  com¬ 
plete,  in  accordance  with  the  plans  and  specifications 
combined.  Any  minor  parts  needed  for  completing 


—  158  - 


it  as  intended  by  drawings  and  specifications,  are 
herein  included  and  will  be  furnished,  whether  or 
not  they  are  illustrated  upon  the  drawings  or  enu¬ 
merated  in  the  specifications. 

We  further  agree  to  furnish  working  drawings, 
the  material,  and  perform  the  work  bid  upon,  in 
conformity  with  the  plans  and  specifications  submit¬ 
ted  to  us  for  examination ;  which  plans  and  specifica¬ 
tions  we  hereby  acknowledge  to  be  sufficient,  which 
we  understand,  and  which  we  hereby  declare  bind¬ 
ing  upon  us  as  a  contract  for  this  portion  of  the 
work,  if  it  be  awarded  to  us.  And  further,  that 
we  will  forthwith  commence  any  and  all  work  per¬ 
taining  thereto,  and  continuously  prosecute  it  until 
completed,  which  shall  be  in  the  time  specified  for 
this  class  of  work,  and  assume  as  independent  contrac¬ 
tors  all  risk  of  accidents  and  claims  for  damages.  We 
will  also  run  the  risk  of  damage  by  transportation, 
by  climatic  causes,  or  wind  and  weather,  by  fire  and 
by  labor  strikes,  and  all  other  risks  to  any  of  the 
work  awarded  to  us  (except  the  acts  of  the  Water 
Company),  while  said  work  is  in  progress  and 
until  completed  and  accepted. 


— 159  — 


We  also  propose  to  furnish  and  complete,  inside 

of . months  from  award  of  contract,  the  tank 

with  all  its  connections,  completely  erected,  for  the 
following  sums,  namely: 

For  the  tank,  complete,  including  all  material  and 
painting,  and  seven-inch  wronght-iron  lead-lined  pipe 
with  bronze  fittings,  the  sum  of . 

. .($ . ) 

dollars.  Or  the  same  with  eight -inch  wronght-iron 
lead -lined  pipe  and  bronze  fittings,  the  sum  of 

- . (# . : . ) 

dollars. 

For  coating  the  inside  of  the  tank,  both  bottom 
and  sides,  with  Portland  cement  mortar  one-inch 

thick,  the  sum  of 

. (t . ) 

dollars. 

We  enclose  a  certified  check  in  the  sum  of 


($ . )  dollars,  as  a  guarantee  that  if  the 

work  is  awarded  to  ns  we  will  execute  a  contract 
therefor,  with  approved  security,  within  ten  days 
from  the  time  of  awarding  the  contract. 


—  160  — 

Our  suret . will  be  the . 


which  will  execute  a  bond  in  the  sum  of 

. ($ . ) 

dollars,  guaranteeing  our  performance  of  this  work 
in  accordance  with  the  plans,  specifications,  terms 
of  contract,  and  the  sum  agreed  upon. 

Very  respectfully, 


—  161 


PROPOSAL  XIX. 


FOR  PIPES,  SPECIALS,  FITTINGS,  AND  VALVES  IN 
COAGULANT-HOUSE. 


To  the  Louisville  Water  Company , 

of  Louisville ,  Ky. 

Gentlemen  : 

We,  the  undersigned . . . 

. .... . as  principal  , 

and . 

. as  suret . , 

being  all  the  parties  directly  or  indirectly  interested 
in  this  bid,  propose  to  the  Louisville  Water  Com¬ 
pany  to  design,  construct,  test,  furnish,  transport  to, 
and  erect  in  the  coagulant -house,  as  described  in 
paragraphs  104,  105,  and  others  if  relevant,  of  the 
specifications,  and  represented  upon  drawings,  sheets 
Nos.  and  ,  the  following: 

1.  The  7 -inch  or  8 -inch  wrought -iron  screw- 
jointed  lead-lined  pipes,  with  fittings  and  valves,  re¬ 
quired  for  the  main  floor  water  supply  pipe  from 

11 


—  162  — 


the  sidewalk  on  Frankfort  Avenue  to  the  four  sul¬ 
phate  of  alumina  solution  tanks. 

2.  The  7 -inch  or  8 -inch  wrought -iron  screw- 

jointed  lead-lined  pipes,  with  fittings  and  valves,  dis¬ 
charging  the  sulphate  of  alumina  solution  from  the 
preparation  tanks  into  the  regulating  and  feed-tank. 

3.  The  7 -inch  or  8 -inch  wrought -iron  screw- 

jointed  lead-lined  pipes,  with  fitting  and  valves,  con¬ 
necting  the  sulphate  of  alumina  solution  regulating 
and  feed-pump  with  the  regulating  and  feed-tank, 
and  the  discharge  pipe  for  injecting  the  sulphate  of 
alumina  solution  into  the  stream  of  subsided  inflow¬ 
ing  water. 

4.  The  7 -inch  or  8 -inch  wrought -iron  screw - 

jointed  lead -lined  pipes,  with  fittings  and  valves, 

conducting  the  sulphate  of  alumina  solution  from 
the  pump  into  the  stream  of  inflowing  settled  water. 

5.  The  6 -inch  wrought -iron  screw -jointed  drain 
pipes,  with  valves  and  fittings,  from  the  several 
floors  of  the  coagulant-house  into  the  sewer. 

6.  Six  sinks  on  brackets,  with  roll  rim  back, 
with  center  outlet,  white  enameled  inside  and  bronzed 
outside,  20  inches  by  40  inches  in  size,  back  15 


—  163  — 


inches  high,  fitted  with  two  nickel -plated  24 -inch 
Fuller  compression  faucets,  ij4-inch  drain  pipes,  all 
put  up  and  connected  with  main  drain  pipe. 

We  propose  further  to  design  and  construct  all 
these  after  the  most  approved  methods,  under  the 
supervision  and  to  the  satisfaction  and  acceptance  of 
the  Louisville  Water  Company. 

This  proposal  is  submitted  for  the  work,  com¬ 
plete,  in  accordance  with  the  plans  and  specifica¬ 
tions  combined.  Any  minor  parts  needed  for  com¬ 
pleting  the  work  as  intended  by  drawings  and 
specifications  are  herein  included  and  will  be  fur¬ 
nished,  whether  or  not  they  are  illustrated  upon  the 
drawings  or  enumerated  in  the  specifications. 

We  further  agree  to  furnish  working  drawings, 
the  material,  and  perform  the  work  bid  upon,  in 
conformity  with  the  plans  and  specifications  submit¬ 
ted  to  us  for  examination;  which  plans  and  speci¬ 
fications  we  hereby  acknowledge  to  be  sufficient, 
which  we  understand,  and  which  we  hereby  declare 
binding  upon  us  as  a  contract  for  this  portion  of 
the  work,  if  it  is  awarded  to  us.  And  further,  that 
we  will  forthwith  commence  any  and  all  work  per- 


—  164- 


taming  thereto,  and  continuously  prosecute  it  until 
completed,  which  shall  be  in  the  time  specified  for 
this  class  of  work,  and  assume  as  independent  con¬ 
tractors  all  risk  of  accidents  and  claims  for  damages. 
We  will  also  run  the  risk  of  damage  by  transporta¬ 
tion,  by  climatic  causes,  or  wind  and  weather,  by 
fire  and  by  labor  strikes,  and  all  other  risks  to  any 
of  the  work  awarded  to  us  (except  the  acts  of 
the  Water  Company),  while  said  work  is  in  pro¬ 
gress  and  until  completed  and  accepted. 

All  the  foregoing  we  propose  to  furnish,  con¬ 
struct,  and  complete  inside  of. . months 

from  award  of  contract,  for  the  following  prices: 

1.  For  the  7 -inch  wrought -iron,  screw- jointed, 

lead -lined  pipes,  with  fittings  and  valves,  as  herein¬ 
before  named,  the  sum  of . 

. ($ . )  dollars; 

or,  for  the  8-inch,  the  sum  of 

. . ($ . )  dollars. 

2.  For  the  7 -inch  wrought -iron,  screw -jointed, 
lead -lined  pipes,  with  fittings  and  valves,  as  herein¬ 
before  named,  the  sum  of 


)  dollars; 


—  165 


or,  for  the  8-inch,  the  sum  of 

. . . . ($ . )  dollars. 

3.  For  the  7 -inch  wrought- iron,  screw- jointed, 
lead-lined  pipes,  with  fittings  and  valves,  as  herein¬ 
before  named,  the  sum  of 

. . . . ($ . )  dollars; 

or,  for  the  8-inch,  the  sum  of 

. ($ . )  dollars. 

4.  For  the  7 -inch  wrought- iron,  screw -jointed, 
lead-lined  pipes,  with  fittings  and  valves,  as  herein¬ 
before  named,  the  sum  of 

. ($U . )  dollars ; 

or,  for  the  8-inch,  the  sum  of 

. ($ . )  dollars. 

5.  The  6-inch  wrought-iron,  screw-jointed  drain¬ 
pipes,  with  fittings  and  valves,  as  hereinbefore 
named,  the  sum  of 

. ($ . )  dollars 

6.  For  the  six  sinks,  faucets,  and  drain-pipes,  as 
hereinbefore  named,  the  sum  of 


)  dollars. 


—  166  — 

We  enclose  a  certified  check  in  the  sum  of 


($ . )  dollars,  as  a  guarantee  that  if  this 

work  is  awarded  to  us  we  will  execute  a  contract 
therefor,  with  approved  security,  within  ten  days 
from  the  time  of  awarding  the  contract. 

Our  suret . will  be  the  . . . 


which  will  execute  a  bond  in  the  sum  of . 

. - . - . . ($ . ) 

dollars,  guaranteeing  our  performance  of  this  work 
in  accordance  with  the  illustrations,  descriptions, 
specifications,  terms  of  contract,  and  the  sum  agreed 


upon. 


Very  respectfully, 


— 167  — 


PROPOSAL  XX. 


FOR  GALLERIES,  PLATFORMS,  FLOORS,  AND  STAIRS. 


To  the  Louisville  Water  Company , 

of  Louisville ,  Ky. 

Gentlemen  : 

We,  the  undersigned .  . 

. as  principal  , 

and . . . . . . 

. . . as  snret . , 

being  all  the  parties  directly  or  indirectly  interested 
in  this  bid,  propose  to  the  Louisville  Water  Com¬ 
pany  to  furnish  the  materials,  construct,  transport, 
and  erect  in  the  filter  and  coagulant-houses,  the  gal¬ 
leries,  platforms,  floors,  stairways,  and  railings  de¬ 
scribed  in  paragraphs  53  and  80,  and  others  if  rele¬ 
vant,  of  the  specifications,  and  illustrated  upon 
drawings,  sheet  No.  14. 

We  further  agree  that,  in  the  construction  and 


—  168  — 


erection  of  these  appurtenances  to  the  filter  and 
coagulant-houses,  we  will  use  the  most  suitable  and 
best  metals  of  the  several  kinds,  and  construct  after 
the  most  approved  methods,  transport  to,  and  erect 
the  same  in  said  filter  and  coagulant-houses  under 
the  supervision  and  to  the  satisfaction  and  accept¬ 
ance  of  the  Louisville  Water  Company. 

This  proposal  is  submitted  for  the  work  com¬ 
plete,  in  accordance  with  plans  and  specifications 
combined.  Any  minor  parts  needed  for  completing 
the  work  as  intended  by  drawings  and  specifications 
are  herein  included  and  will  be  furnished,  whether 
or  not  they  are  illustrated  upon  the  drawings  or 
enumerated  in  the  specifications. 

We  further  agree  to  furnish  working  drawings, 
the  material,  and  perform  the  work  bid  upon,  in 
conformity  with  the  plans  and  specifications  submit¬ 
ted  to  us  for  examination;  which  plans  and  speci¬ 
fications  we  hereby  acknowledge  to  be  sufficient, 
which  we  understand,  and  which  we  hereby  declare 
binding  upon  us  as  a  contract  for  this  portion  of 
the  work,  if  it  is  awarded  to  us.  And  further,  that 
we  will  forthwith  commence  any  and  all  work  per- 


—  169  — 


taining  thereto,  and  continuously  prosecute  it  until 
completed,  which  shall  be  in  the  time  specified  for 
this  class  of  work,  and  assume  as  independent  con¬ 
tractors  all  risk  of  accidents  and  claims  for  damages. 
We  will  also  run  the  risk  of  damage  by  transporta¬ 
tion,  by  climatic  causes,  or  wind  and  weather,  by  fire 
and  by  labor  strikes,  and  all  other  risks  to  any  of 
the  work  awarded  to  us  (except  the  acts  of  the 
Water  Company),  while  said  work  is  in  progress, 
and  until  completed  and  accepted. 

All  the  foregoing  we  propose  to  furnish,  con¬ 
struct,  and  complete  inside  of. . months  from 

award  of  contract,  for  the  following  prices: 

For  the  galleries,  stairs,  railings,  and  appurte¬ 
nances  at  the  northerly  and  southerly  ends  of  the 
southerly  group  of  three  filters  in  the  filter-house, 
the  steel,  wrought  and  cast-iron  therein  weighing 

not  less  than . pounds,  the  sum  of 

. ($ . )  dollars. 

For  one  steel,  wrought  and  cast-iron  stairway,  on 
the  outside  of  the  northwesterly  corner  of  the  filter- 
house,  from  the  sidewalk  on  Frankfort  Avenue  to 
the  level  of  the  filter-house  floor,  terminating  at  a 


— 170  — 


door  near  the  north  end  of  said  house,  the  steel, 
wrought  and  cast-iron  weighing  not  less  than 

. pounds,  the  sum  of . 

. ($ . )  dollars. 

For  one  steel,  wrought  and  cast-iron  stairway 
from  the  sidewalk  level  on  Frankfort  Avenue,  inside 
of  and  down  along  the  northerly  wall  of  the  coagu¬ 
lant-house  to  the  level  of  the  filter -house  floor,  and 
thence  to  the  lower  floor  of  the  coagulant -house,  the 
steel,  wrought  and  cast-iron  thereof  weighing  not 
less  than . pounds,  the  sum  of. . . . 

. (i . . . ) 

For  one  steel,  wrought  and  cast-iron  spiral 

stairway,  6^4  feet  extreme  diameter  and . feet 

in  height,  to  be  erected  in  the  northwesterly  corner 
of  the  coagulant -house,  from  the  lower  to  the  top 
floor  thereof,  the  steel,  wrought  and  cast-iron 

thereof  weighing  not  less  than . pounds, 

the  sum  of . 

($ . )  dollars. 

For  the  four  floors  in  the  coagulant  -  house,  the 
steel,  wrought  and  cast-iron  thereof  weighing  not 


171 


less  than . pounds,  the  sum  of . 

. . . . . ($  )  dollars. 

We  enclose  certified  check  in  the  sum  of . 

. . . ($ . )  dollars, 

as  a  guarantee  that  if  the  work  is  awarded  to  us 
we  will  execute  a  contract  therefor,  with  approved 
security,  within  ten  days  from  the  time  of  award¬ 
ing  the  contract. 

Our  suret . will  be  the . 


which  will  execute  a  bond  in  the  sum  of. . . . 

. (i . ) 

dollars,  guaranteeing  our  performance  of  this  work 
in  accordance  with  the  plans,  specifications,  terms  of 
contract,  and  the  sum  agreed  upon. 

Very  respectfully, 


—  172 


PROPOSAL  XXI. 


FOR  ELEVATOR  IN  COAGULANT-HOUSE. 


To  the  Louisville  Water  Company , 

of  Louisville,  Ky . 

Gentlemen  : 

We,  the  undersigned . . . • . . 

. as  principal  , 

and .  . 

. . as  suret . , 

being  all  the  parties  directly  or  indirectly  interested 
in  this  bid,  propose  to  the  Louisville  Water  Com¬ 
pany  to  furnish  the  materials,  construct,  transport, 
and  erect  in  the  coagulant -house,  the  elevator  de¬ 
scribed  in  paragraphs  80  and  107,  and  others  if  rel¬ 
evant,  of  the  specifications,  and  illustrated  upon  the 
drawings,  sheets  Nos. 

We  further  propose  to  furnish  design,  drawings, 
and  specifications,  to  conform  to  the  Water  Com- 


—  173  — 


pany’s  drawings  and  specifications,  for  the  elevator 
completely  erected  under  the  supervision  and  to  the 
approval  and  acceptance  of  the  Louisville  Water 
Company. 

This  proposal  is  submitted  for  the  work,  com¬ 
plete,  in  accordance  with  the  Water  Company’s  and 
our  plans  and  specifications  combined.  Any  minor 
parts  needed  for  completing  it  as  intended  by  all 
the  drawings  and  specifications  are  herein  included 
and  will  be  furnished,  whether  or  not  they  are  illus¬ 
trated  upon  the  drawings  or  enumerated  in  the 
specifications. 

We  further  agree  to  furnish  working  drawings, 
the  material,  and  perform  the  work  bid  upon,  in 
conformity  with  the  plans  and  specifications  of  the 
Water  Company  and  ourselves  jointly  submitted  for 
the  purpose;  which  plans  and  specifications  we 
hereby  acknowledge  to  be  sufficient,  which  we  under¬ 
stand,  and  which  we  hereby  declare  binding  upon 
us  as  a  contract  for  this  portion  of  the  work, 
if  it  be  awarded  to  us.  And  further,  that  we  will 
forthwith  commence  any  and  all  work  pertaining 
thereto,  and  continuously  prosecute  it  until  com- 


—  174  — 

pleted,  which  shall  be  in  the  time  specified  for  this 
class  of  work,  and  assume  as  independent  contrac¬ 
tors  all  risk  of  accidents  and  claims  for  damages. 
We  will  also  run  the  risk  of  damage  by  transpor¬ 
tation,  by  climatic  causes,  or  wind  and  weather, 
by  fire  and  by  labor  strikes,  and  all  other  risks 
to  any  of  the  work  awarded  to  us  (except  the 
acts  of  the  Water  Company),  while  said  work  is 
in  progress  and  until  completed  and  accepted. 

Accordingly,  we  propose  to  furnish,  construct,  and 
complete  the  elevator  in  months  from 

award  of  contract,  for  the  sum  of 

. ($ . )  dollars. 

We  enclose  a  certified  check  in  the  sum  of 

. (# . ) 

dollars,  as  a  guarantee  that  if  the  work  is  awarded 
to  us  we  will  execute  a  contract  therefor,  with  ap¬ 
proved  security,  within  ten  days  from  the  time  of 
awarding  the  contract. 

Our  suret . will  be  the . . . 


which  will  execute  a  bond  in  the  sum  of 


) 


— 175  — 


dollars,  guaranteeing  onr  performance  of  this  work 
in  accordance  with  the  Water  Company’s  and  onr 
plans  and  specifications  combined,  terms  of  contract, 
and  the  sum  agreed  upon. 


Very  respectfully, 


— 176  — 


PROPOSAL  XXII. 


FOR  TWO  CHRONOMETERS. 


To  the  Louisville  Water  Company , 

of  Louisville,  Ky. 

Gentlemen : 

We,  the  undersigned . 

. as  principal  , 

and . . . . . . 

. . as  suret . , 

being  all  the  parties  directly  or  indirectly  interested 
in  this  bid,  propose  to  the  Louisville  Water  Com¬ 
pany  to  furnish  the  materials,  construct,  transport, 
put  up,  adjust,  and  regulate  in  each  of  the  coagu¬ 
lant  and  filter-houses,  a  chronometer  or  standard 
clock  as  described  in  specifications,  paragraph  ioo. 

We  further  propose  to  furnish  illustrations,  de¬ 
signs,  drawings,  and  specifications  of  what  we  pro¬ 
pose  to  furnish,  which  shall  conform  to  the  Water 
Company’s  specifications  for  the  chronometers  which 
we  propose  to  furnish. 


—  177  — 


This  proposal  is  submitted  for  the  work,  com¬ 
plete,  in  accordance  with  the  Water  Company’s  spec¬ 
ifications  and  onr  illustrations,  designs,  drawings,  and 
specifications  combined.  Any  minor  parts  needed  for 
completing  it  as  intended  by  all  the  drawings  and 
specifications  are  herein  included  and  will  be  fur¬ 
nished,  whether  or  not  they  are  illustrated  upon  the 
drawings  or  enumerated  in  the  specifications. 

We  further  agree  to  furnish  the  material  and 

perform  the  work  bid  upon,  in  conformity  with  the 

plans  and  specifications  of  the  Water  Company  and 

ourselves  jointly  submitted  for  the  purpose;  which 

plans  and  specifications  we  hereby  acknowledge  to 

be  sufficient,  which  we  understand,  and  which  we 

hereby  declare  binding  upon  us  as  a  contract  for 

this  portion  of  the  work,  if  it  is  awarded  to  us. 

And  further,  that  we  will  forthwith  commence  any 

and  all  work  pertaining  thereto,  and  continuously 

prosecute  it  until  completed,  which  shall  be  in  the 

time  specified  for  this  class  of  work,  and  assume  as 

independent  contractors  all  risk  of  accidents  and 

claims  for  damages.  We  will  also  run  the  risk  of 

damage  by  transportation,  by  climatic  causes,  or  wind 

12 


178  — 


and  weather,  by  fire  and  by  labor  strikes,  and  all 
other  risks  to  any  of  the  work  awarded  to  us  (except 
the  acts  of  the  Water  Company),  while  said  work  is 
in  progress,  and  until  completed  and  accepted. 

Accordingly,  we  propose  to  furnish,  construct, 

and  complete  the  chronometers  in . months 

from  award  of  contract,  for  the  sum  of . 

($ . . )  dollars. 

We  enclose  a  certified  check  in  the  sum  of 

. ($ . )  dollars, 

as  a  guarantee  that  if  this  work  is  awarded  to  ns 
we  will  execute  a  contract  therefor,  with  approved 
security,  within  ten  days  from  the  time  of  awarding 
the  contract. 

Our  suret  will  be  the . 


which  will  execute  a  bond  in  the  sum  of 

. . . - . (# . ) 

guaranteeing  our  performance  of  this  work  in  ac¬ 
cordance  with  the  plans,  specifications,  terms  of 
contract,  and  the  sum  agreed  upon. 

Very  respectfully, 


— 179  — 


PROPOSAL  XXIII. 


FOR  LIGHTING  FILTER  AND  COAGULANT-HOUSES. 


To  the  Louisville  Water  Company, 

of  Louisville,  Ky. 

Gentlemen  : 

We,  the  undersigned . 

. as  principal  , 

and . 

. as  snret . , 

being  all  the  parties  directly  or  indirectly  interested 
in  this  bid,  propose  to  the  Louisville  Water  Com¬ 
pany  to  furnish  the  material,  wires,  lamps,  and 
everything  pertaining  thereto,  for  lighting  the  filter 
and  coagulant -houses,  as  described  in  specifications, 
paragraph  112. 

We  further  propose  that  our  plan  of  lighting 
shall  embrace  the  following  details: 


-180- 


We  also  propose  to  furnish  herewith  drawings 
and  specifications,  illustrative  and  descriptive  of  the 
plan  of  lighting  described  in  the  preceding  para¬ 
graph,  for  the  approval  and  acceptance  of  the  Louis¬ 
ville  Water  Company. 

This  proposal  is  submitted  for  the  work,  com¬ 
plete,  in  accordance  with  our  and  the  Water  Com- 


—  181  — 


pany’s  plans  and  specifications  combined.  Any 
minor  parts  needed  for  completing  it  as  intended 
by  our  plans  and  specifications,  are  hereby  included 
and  will  be  furnished,  whether  or  not  they  are  illus¬ 
trated  upon  the  drawings  or  enumerated  in  the 
specifications. 

We  further  agree  to  furnish  working  drawings, 
the  material,  and  perform  the  work  bid  upon,  in 
conformity  with  our  plans  and  specifications,  and  to 
the  approval  and  acceptance  of  the  Louisville  Water 
Company;  which  plans  and  specifications  we  hereby 
acknowledge  to  be  sufficient,  which  we  understand, 
and  which  we  hereby  declare  binding  upon  us  as  a 
contract  for  this  portion  of  the  work,  if  it  is  awarded 
to  us.  And  further,  that  we  will  forthwith  com¬ 
mence  any  and  all  work  pertaining  thereto,  and  con¬ 
tinuously  prosecute  it  until  completed,  which  shall 
be  in  the  time  specified  for  this  class  of  work,  and 
assume  as  independent  contractors  all  risks  of  acci¬ 
dents  and  claims  for  damages.  We  will  also  run 
the  risk  of  damage  by  transportation,  by  climatic 
causes,  or  wind  and  weather,  by  fire  and  by  labor 
strikes,  and  all  other  risks  to  any  of  the  work 


—  182  — 


awarded  to  us  (except  the  acts  of  the  Water  Com¬ 
pany),  while  said  work  is  in  progress  and  until 
completed  and  accepted. 

Accordingly,  we  propose  to  furnish,  construct,  and 

complete  the  lighting  in . months  from 

award  of  contract,  for  the  sum  of . . . 

. ($ . )  dollars. 

We  enclose  a  certified  check  in  the  sum  of 

. ($ . ) 

dollars,  as  a  guarantee  that  if  the  work  is  awarded 
to  us  we  will  execute  a  contract  therefor,  with  ap¬ 
proved  security,  within  ten  days  from  the  time  of 
awarding  the  contract. 

Our  suret . . . will  be  the . . 


which  will  execute  a  bond  in  the  sum  of . .... 

. . : . ($ . )  dollars, 

guaranteeing  our  performance  of  this  work  in  ac¬ 
cordance  with  the  Water  Company’s  and  our  plans 
and  specifications  combined,  terms  of  contract,  and 
the  sum  agreed  upon. 

Very  respectfully, 


183  — 


PROPOSAL  XXIV. 


FOR  HEATING  SYSTEM. 


To  the  Louisville  Water  Company , 

of  Louisville ,  Ky. 

Gentlemen  : 

We,  the  undersigned . 

. as  principal  , 

and . . . 

. as  suret . , 

being  all  the  parties  directly  or  indirectly  interested 
in  this  bid,  propose  to  the  Louisville  Water  Com¬ 
pany  to  furnish  the  materials  and  erect  in  the  filter 
and  coagulant-houses  at  Crescent  Hill,  two  systems 
of  heating,  as  contemplated  by  paragraphs  no  and 
m,  and  others  if  relevant,  of  the  specifications. 

We  further  propose  that  our  plan  of  heating 
shall  embrace  the  following  details: 


—  184- 


We  also  propose  to  furnish  herewith  drawings 
and  specifications,  illustrative  and  descriptive  of  the 
systems  of  heating  described  in  the  preceding  para- 


—  185  — 


graph,  for  the  approval  and  acceptance  of  the  Louis¬ 
ville  Water  Company. 

This  proposal  is  submitted  for  the  work,  com¬ 
plete,  in  accordance  with  our  and  the  Water  Com¬ 
pany’s  specifications,  and  our  plans  combined.  Any 
minor  parts  needed  for  completing  it  as  intended 
by  our  plans  and  both  the  said  specifications,  are 
herein  included  and  will  be  furnished,  whether  or 
not  they  are  illustrated  upon  the  drawings  or 
enumerated  in  the  specifications. 

We  further  agree  to  furnish  the  material  and 
perform  the  work  bid  upon,  in  conformity  with  our 
plans  and  specifications,  and  to  the  approval  and 
acceptance  of  the  Louisville  Water  Company;  which 
plans  and  specifications  we  hereby  acknowledge  to 
be  sufficient,  which  we  understand,  and  which  we 
hereby  declare  binding  upon  us  as  a  contract  for 
this  portion  of  the  work,  if  it  is  awarded  to  us. 
And  further,  that  we  will  forthwith  commence  any 
and  all  work  pertaining  thereto,  and  continuously 
prosecute  it  until  completed,  which  shall  be  in  the 
time  specified  therefor,  and  assume  as  independent 
contractors  all  risk  of  accidents  and  claims  for  dam- 


—  186  — 


ages.  We  will  also  run  the  risk  of  damage  by  trans¬ 
portation,  by  climatic  causes,  or  wind  and  weather, 
by  fire  and  by  labor  strikes,  and  all  other  risks  to  any 
of  the  work  awarded  to  us  (except  the  acts  of  the 
Water  Company),  while  said  work  is  in  progress 
and  until  completed  and  accepted. 

Accordingly,  we  propose  to  furnish,  construct,  and 

complete  the  heating  system  in . months 

from  award  of  contract,  for  the  following  prices: 
i  st.  For  a  system  of  steam-heating  in  the  filter- 

house,  the  sum  of . 

. : . (# . ) 

dollars 

2nd.  For  a  system  of  steam-heating  in  the  coag¬ 
ulant-house,  the  sum  of . 

. ($ . ) 

dollars. 

3rd.  For  a  system  of  electric  heating  in  the 
filter-house,  the  sum  of 

. - . . . .(# . ) 

dollars. 

4th.  For  a  system  of  electric  heating  in  the 
coagulant-house,  the  sum  of . 


—  187  — 


(* . ) 

dollars. 

We  enclose  a  certified  check  in  the  sum  of 

. . . (# - ) 

dollars,  as  a  guarantee  that  if  this  work  is  awarded 
to  us  we  will  execute  a  contract  therefor,  with  ap¬ 
proved  security,  within  ten  days  from  the  time  of 
awarding  the  contract. 

Our  suret . will  be  the . 


which  will  execute  a  bond  in  the  sum  of. . 

. (t . ) 

dollars,  guaranteeing  our  performance  of  this  work 
in  accordance  with  the  Water  Company’s  and  our 
specifications  and  our  plans  combined,  the  terms  of 
contract,  and  the  sums  agreed  upon. 

Very  respectfully, 


. 


DRAWINGS. 


The  following  list  comprises  the  drawings  which 
have  been  prepared  for  the  purpose  of  illustrating 
the  construction  of  the  filters  proposed,  and  to  en¬ 
able  bidders  to  make  estimates  of  cost: 


A. 

B. 

C. 
i  A. 


2. 

3- 

4- 

5- 

6. 

7* 

8. 

9- 


io. 

it  A. 

12  A. 

13  B. 

14- 

15- 
1 6. 


General  plans  and  details  of  clear -water  reservoir  and 
filter-house,  referred  to  in  the  specifications,  which 
illustrate  work  contracted  for  and  now  in  process  of 
construction,  at  the  completion  of  which  the  erection 
of  the  filters  is  to  be  commenced. 

General  ground  plan  of  the  easterly  compartment  of  dear- 
water  reservoir  and  the  pipe  lines  in  Frankfort  and  Long 
avenues  adjacent  thereto. 

Openings  in  filter-house  floor  at  north  and  south  ends. 

Openings  in  filter-house  floor  at  center. 

Cast-iron  liners  for  openings  in  filter-house  floor. 

General  plan  of  electric  traveling-crane  for  handling  the 
grille  with  agitators. 

Details  of  travelers,  girders,  etc. 

Details  of  travelers,  girders,  etc. 

Tracks,  racks,  spur-gear,  etc.,  for  longitudinal  traveler. 

General  plan  of  filter-tanks  and  longitudinal  section  of 
filter-house. 

Transverse  vertical  section  of  filter-house  and  filter-tanks. 

Plans  and  details  of  filter-tanks. 

Plans  and  details  of  filter-tanks. 

Sand  layer  support  and  strainer  system. 

Stairs  and  galleries  at  ends  of  filter-tanks. 

Sand  agitator  grille,  with  details  of  agitators. 

Details  of  sand  agitators  and  grille. 


—  190  — 


17.  Details  of  agitator  lifting  and  lowering  devices. 

1 8.  Details  of  agitators  and  grille. 

19.  Regulating  valve  at  inflow  of  unfiltered  water. 

20.  -) 

^  |  Details  of  floating  weir. 

21.  Isometrical  perspective  drawing  of  clear-water  reservoir, 

filter-house,  filters,  and  traveling-crane. 

22.  Details  of  wall-girders  and  cast-iron  bed-plates  of  the  walls 

for  traveling-crane. 

23.  Stand-pipe  or  coagulating-tank. 

24.  Stand-pipe  details. 

25.  Stand-pipe  details. 

26.  Meter-motor. 

27.  Slotted  disc-crank. 

28.  Pumps. 

29.  Sulphate  of  alumina  feed-tank. 

30.  Pipes,  specials,  and  fittings  in  coagulant-house. 

31.  Platforms,  floors,  galleries,  and  stairs. 


INDEX. 


Alum  solution,  storing,  and  distributing-tank .  86  50 

Area  of  filter-house .  28  18 

Area  of  filter-tanks .  28  18 

Bronze  or  aluminum  pumps .  86  50 

Bronze  or  aluminum  pumps .  107  65 

Bronze  or  aluminum  acid-proof  pumps .  76  44 

Bronze  or  aluminum  turbine-meter .  75  44 

Capacity  of  unit  filters .  28  18 

Cash  deposit  or  certified  check .  o  6 

Choice  of  methods  and  appliances .  114  71 

Chronometers .  100  59 

Clear-water  reservoir  capacity .  3  8 

Clear-water  supply  pipes .  39,  40  24 

Coagulating  department .  70  43 

Coagulating-house .  8  10 

Compound  traveling-crane .  19  14 

Conflict  of  interests .  116  72 


Connections  between  pipes  supplying  unfiltered  water 
from  Crescent  Hill  Reservoir  and  those  supplying 
filtered  water  from  the  new  pumping  station  to  the 


city .  6  9 

Connections  between  36-inch  and  48-inch  lines  of  pipe 

and  Crescent  Hill  Reservoir .  5  8 

Crescent  Hill  Reservoir  capacity .  2  7 

Definition  of  system . 25  16 

Departure  from  previous  sand  layer  supports  and  strainer 

systems .  56  33 

Details  of  gate-valves .  60-63  37 

Drain-pipes .  106  65 

Drain-pipes  from  filter-tanks .  36  22 

Ducts  to  filter-tanks .  31  20 


— 192  — 

PARAGRAPH.  PAGE. 

Electric  elevator .  108  66 

Electric  energy .  109  68 

Electric  motors .  20  14 

Electric  motors .  106  65 

Electric  motors .  109  67 

Electric  motors  to  gate-valves .  65  38 

Electric  traveling-crane .  67  38 

Elevator  and  stairway  in  coagulating-house .  80  46 

Equipments  in  upper  section  of  stand-pipe .  79  45 

Filter-head  compensator  or  regulator .  41  25 

Filter-head  compensator  or  regulator .  42  26 

Filter-tanks .  29  18,  19 

Filter-units .  26  17 

Filtered  water  effluent  pipes  from  filters .  37,  38  23 

Floating-buoy  for  regulator .  50  27 

Floating-tube  weir .  85  50 

Floating  weir  in  stand-pipe .  77  45 

Foundation  of  stand-pipe  .  81  47 

Gate-valves .  57  34 

Gauges .  93  57 

General  provisions .  114  71 

Groups  of  filter-tanks .  16  14 

Heating  by  electricity .  112  69 

Heating  by  steam .  1 1 1  69 

Inflow  and  outflow  ducts .  31  20 

Informal  proposals .  115  7  2 

Inverted  siphons  and  floating  delivery  weir .  42  26 

Lap,  size,  and  pitch  of  rivets .  82  48 

Lead-lined  pipes .  9°  54 

Lighting .  113  7° 

Location .  24  15 

Location  of  48-inch  nozzles  to  stand-pipe .  83  48 

Main  drain-pipe .  36  22 

Meter-motor .  84  49 

Modification  of  plans .  114  71 

New  power  station  with  pumping  machinery .  21  14 


-193- 

paragraph.  PAGE. 

Number  of  principal  parts  to  purification  works .  i  7 

Openings  through  upper  section  of  stand-pipe  for  light¬ 
ing  and  ventilating .  102  62 

Operation  of  filter  regulator .  50  28 

Painting  upper  section  of  stand-pipe .  102  61 

Payments . o  5 

Pipes  and  specials  for  unfiltered  water  supply  to  filter- 

house  . 10-13  1 1-I3 

Pipes  in  coagulating-house .  104  63 

Pipes  in  coagulating-house .  105  64 

Plans  differing  from  Water  Company’s .  o  5 

Platforms,  stairs,  railings,  etc .  53  30 

Portland  cement  lining .  103  63 

Portland  cement  lining  in  regulator  cylinder .  49  27 

Positive  and  variable  alum  solution  feed  devices .  89  52 

Power .  no  69 

Precaution  against  interruption  in  the  supply .  6  9 

Precipitating-tank  or  stand-pipe .  72  43 

Principal  sections  of  work .  1  7 

Purification  processes .  4  8 

Purification  scope .  4  8 

Rate  of  filtration .  28  18 

Rotary  pumps .  106  65 

Sand .  91  55 

Sand  agitator . . .  18  14 

Sand  agitator .  68  40 

Sand  layer  support  and  strainer  system .  54  30 

Scope  and  limitations  of  work .  117  73 

Screw- stems  of  gate-valves .  59  36 

Size  of  stand-pipe .  81  46 

Size  of  unit  filters .  26  17 

Stand-pipe .  7  10 

Sterilizing  sand .  92  56 

Subdivisions  of  work .  o  3 

Subdivisions  of  work .  118  74 

Subdivisions  of  work .  119  74 


194  — 


PARAGRAPH.  PAGE. 

Subsidence . . . .  2  7 

Sulphate  of  alumina  dissolving-tanks .  73  44 

Sulphate  of  alumina  feed  and  regulating-tank .  74  44 

Sulphate  of  alumina  feed  and  regulating-tank .  103  62 

Sulphate  of  alumina  solution-tanks .  101  59 

System  of  pipes  to  filter-tanks .  30  19 

System  of  pipes  to  filter-tanks .  32  20 

System  of  pipes  to  filter-tanks .  33  20 

System  of  unfiltered  water  supply  pipes .  17  14 

System  of  water  purification . . . .  23  15 

Tablets,  switchboards,  and  cabinets .  58  35 

Testing  gate-valves .  64  38 

Thickness  of  plates  in  stand-pipes _ , . _  81  47 

Thirty-six-inch  gate- valves  in  filter-house .  34  21 

Twenty-inch  aluminum  weir  tube .  48  26 

Twenty-inch  balanced  piston-valves . . 35  21 

Unfiltered  water  supply  pipes  to  filter-house .  9  11 

Upper  section  of  stand-pipe .  102  60 

Use  of  coagulant . 4  8 

Use  of  coagulant........ . 8  11 

Use  of  coagulant .  . .  25  16,  17 

Vacuum  pipe  to  regulator .  51  29 

Weirs  to  filter-tanks .  52  29 

Wire-cloth  mats .  29  19 


